46494979840 has 72 divisors (see below), whose sum is σ = 112712071248. Its totient is φ = 18373877760.

The previous prime is 46494979837. The next prime is 46494979903. The reversal of 46494979840 is 4897949464.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112581 + ... + 325060.

It is an arithmetic number, because the mean of its divisors is an integer number (1565445434).

Almost surely, 2^46494979840 is an apocalyptic number.

46494979840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

46494979840 is an abundant number, since it is smaller than the sum of its proper divisors (66217091408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

46494979840 is an equidigital number, since it uses as much as digits as its factorization.

46494979840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437745 (or 437731 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 64.

The spelling of 46494979840 in words is "forty-six billion, four hundred ninety-four million, nine hundred seventy-nine thousand, eight hundred forty".