49151950849 has 4 divisors (see below), whose sum is σ = 49199533636. Its totient is φ = 49104368064.

The previous prime is 49151950807. The next prime is 49151950891. The reversal of 49151950849 is 94805915194.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94805915194 = 2 ⋅47402957597.

It is an interprime number because it is at equal distance from previous prime (49151950807) and next prime (49151950891).

It can be written as a sum of positive squares in 2 ways, for example, as 20300550400 + 28851400449 = 142480^2 + 169857^2 .

It is a cyclic number.

It is not a de Polignac number, because 49151950849 - 2¹³ = 49151942657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49151950849.

It is not an unprimeable number, because it can be changed into a prime (49151950949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23789844 + ... + 23791909.

It is an arithmetic number, because the mean of its divisors is an integer number (12299883409).

Almost surely, 2^49151950849 is an apocalyptic number.

It is an amenable number.

49151950849 is a deficient number, since it is larger than the sum of its proper divisors (47582787).

49151950849 is a wasteful number, since it uses less digits than its factorization.

49151950849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47582786.

The product of its (nonzero) digits is 2332800, while the sum is 55.

It can be divided in two parts, 49151 and 950849, that added together give a 6-th power (1000000 = 10⁶).

The spelling of 49151950849 in words is "forty-nine billion, one hundred fifty-one million, nine hundred fifty thousand, eight hundred forty-nine".