46128637931 has 4 divisors (see below), whose sum is σ = 48556461000. Its totient is φ = 43700814864.

The previous prime is 46128637897. The next prime is 46128637937. The reversal of 46128637931 is 13973682164.

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

It is a cyclic number.

It is not a de Polignac number, because 46128637931 - 2¹⁴ = 46128621547 is a prime.

It is a super-2 number, since 2×46128637931² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 46128637931.

It is not an unprimeable number, because it can be changed into a prime (46128637937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213911506 + ... + 1213911543.

It is an arithmetic number, because the mean of its divisors is an integer number (12139115250).

Almost surely, 2^46128637931 is an apocalyptic number.

46128637931 is a deficient number, since it is larger than the sum of its proper divisors (2427823069).

46128637931 is a wasteful number, since it uses less digits than its factorization.

46128637931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427823068.

The product of its digits is 1306368, while the sum is 50.

The spelling of 46128637931 in words is "forty-six billion, one hundred twenty-eight million, six hundred thirty-seven thousand, nine hundred thirty-one".