46638391511 has 4 divisors (see below), whose sum is σ = 46951401000. Its totient is φ = 46325382024.

The previous prime is 46638391493. The next prime is 46638391531. The reversal of 46638391511 is 11519383664.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46638391511 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 (46638391531) 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, 156504521 + ... + 156504818.

It is an arithmetic number, because the mean of its divisors is an integer number (11737850250).

Almost surely, 2^46638391511 is an apocalyptic number.

46638391511 is a deficient number, since it is larger than the sum of its proper divisors (313009489).

46638391511 is a wasteful number, since it uses less digits than its factorization.

46638391511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313009488.

The product of its digits is 466560, while the sum is 47.

The spelling of 46638391511 in words is "forty-six billion, six hundred thirty-eight million, three hundred ninety-one thousand, five hundred eleven".