49001258081 has 4 divisors (see below), whose sum is σ = 49459213872. Its totient is φ = 48543302292.

The previous prime is 49001258057. The next prime is 49001258171. The reversal of 49001258081 is 18085210094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49001258081 - 2²² = 48997063777 is a prime.

It is a super-2 number, since 2×49001258081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49001258041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228977735 + ... + 228977948.

It is an arithmetic number, because the mean of its divisors is an integer number (12364803468).

Almost surely, 2^49001258081 is an apocalyptic number.

It is an amenable number.

49001258081 is a deficient number, since it is larger than the sum of its proper divisors (457955791).

49001258081 is a wasteful number, since it uses less digits than its factorization.

49001258081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457955790.

The product of its (nonzero) digits is 23040, while the sum is 38.

The spelling of 49001258081 in words is "forty-nine billion, one million, two hundred fifty-eight thousand, eighty-one".