49692012658 has 4 divisors (see below), whose sum is σ = 74538018990. Its totient is φ = 24846006328.

The previous prime is 49692012649. The next prime is 49692012761. The reversal of 49692012658 is 85621029694.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 49383061729 + 308950929 = 222223^2 + 17577^2 .

It is a super-2 number, since 2×49692012658² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12423003163 + ... + 12423003166.

Almost surely, 2^49692012658 is an apocalyptic number.

49692012658 is a deficient number, since it is larger than the sum of its proper divisors (24846006332).

49692012658 is a wasteful number, since it uses less digits than its factorization.

49692012658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24846006331.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 49692012658 in words is "forty-nine billion, six hundred ninety-two million, twelve thousand, six hundred fifty-eight".