46637918421 has 8 divisors (see below), whose sum is σ = 62317049184. Its totient is φ = 31025366640.

The previous prime is 46637918417. The next prime is 46637918441. The reversal of 46637918421 is 12481973664.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 46637918421 - 2² = 46637918417 is a prime.

It is a super-2 number, since 2×46637918421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46637918441) 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, 16643110 + ... + 16645911.

It is an arithmetic number, because the mean of its divisors is an integer number (7789631148).

Almost surely, 2^46637918421 is an apocalyptic number.

It is an amenable number.

46637918421 is a deficient number, since it is larger than the sum of its proper divisors (15679130763).

46637918421 is a wasteful number, since it uses less digits than its factorization.

46637918421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33289491.

The product of its digits is 1741824, while the sum is 51.

The spelling of 46637918421 in words is "forty-six billion, six hundred thirty-seven million, nine hundred eighteen thousand, four hundred twenty-one".