49692540509 has 8 divisors (see below), whose sum is σ = 50489627832. Its totient is φ = 48898598400.

The previous prime is 49692540493. The next prime is 49692540553. The reversal of 49692540509 is 90504529694.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11822212900 + 37870327609 = 108730^2 + 194603^2 .

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 49692540509 - 2⁴ = 49692540493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49692540809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754442 + ... + 817659.

It is an arithmetic number, because the mean of its divisors is an integer number (6311203479).

Almost surely, 2^49692540509 is an apocalyptic number.

It is an amenable number.

49692540509 is a deficient number, since it is larger than the sum of its proper divisors (797087323).

49692540509 is a wasteful number, since it uses less digits than its factorization.

49692540509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572607.

The product of its (nonzero) digits is 3499200, while the sum is 53.

The spelling of 49692540509 in words is "forty-nine billion, six hundred ninety-two million, five hundred forty thousand, five hundred nine".