49131632465 has 8 divisors (see below), whose sum is σ = 58969334760. Its totient is φ = 39297722112.

The previous prime is 49131632461. The next prime is 49131632471. The reversal of 49131632465 is 56423613194.

It can be written as a sum of positive squares in 4 ways, for example, as 19638378769 + 29493253696 = 140137^2 + 171736^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49131632465 - 2² = 49131632461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49131632461) 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 7 ways as a sum of consecutive naturals, for example, 919400 + ... + 971369.

It is an arithmetic number, because the mean of its divisors is an integer number (7371166845).

Almost surely, 2^49131632465 is an apocalyptic number.

It is an amenable number.

49131632465 is a deficient number, since it is larger than the sum of its proper divisors (9837702295).

49131632465 is a wasteful number, since it uses less digits than its factorization.

49131632465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895971.

The product of its digits is 466560, while the sum is 44.

The spelling of 49131632465 in words is "forty-nine billion, one hundred thirty-one million, six hundred thirty-two thousand, four hundred sixty-five".