49961637441 has 9 divisors (see below), whose sum is σ = 72167778241. Its totient is φ = 33307311252.

The previous prime is 49961637409. The next prime is 49961637449. The reversal of 49961637441 is 14473616994.

The square root of 49961637441 is 223521.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 49961637441 - 2⁵ = 49961637409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49961637449) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 633310 + ... + 707816.

Almost surely, 2^49961637441 is an apocalyptic number.

49961637441 is the 223521-st square number.

49961637441 is the 111761-st centered octagonal number.

It is an amenable number.

49961637441 is a deficient number, since it is larger than the sum of its proper divisors (22206140800).

49961637441 is an frugal number, since it uses more digits than its factorization.

49961637441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149020 (or 74510 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 49961637441 in words is "forty-nine billion, nine hundred sixty-one million, six hundred thirty-seven thousand, four hundred forty-one".