46506640521 has 48 divisors (see below), whose sum is σ = 69384555072. Its totient is φ = 27681392640.

The previous prime is 46506640517. The next prime is 46506640559. The reversal of 46506640521 is 12504660564.

It is not a de Polignac number, because 46506640521 - 2² = 46506640517 is a prime.

It is a super-2 number, since 2×46506640521² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 46506640521.

It is not an unprimeable number, because it can be changed into a prime (46506640501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8582605 + ... + 8588021.

It is an arithmetic number, because the mean of its divisors is an integer number (1445511564).

Almost surely, 2^46506640521 is an apocalyptic number.

It is an amenable number.

46506640521 is a deficient number, since it is larger than the sum of its proper divisors (22877914551).

46506640521 is a wasteful number, since it uses less digits than its factorization.

46506640521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5862 (or 5851 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 46506640521 in words is "forty-six billion, five hundred six million, six hundred forty thousand, five hundred twenty-one".