46404497640 has 64 divisors (see below), whose sum is σ = 139982693760. Its totient is φ = 12306159360.

The previous prime is 46404497603. The next prime is 46404497647. The reversal of 46404497640 is 4679440464.

It is a self number, because there is not a number n which added to its sum of digits gives 46404497640.

It is not an unprimeable number, because it can be changed into a prime (46404497647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1046524 + ... + 1089963.

It is an arithmetic number, because the mean of its divisors is an integer number (2187229590).

Almost surely, 2^46404497640 is an apocalyptic number.

46404497640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

46404497640 is an abundant number, since it is smaller than the sum of its proper divisors (93578196120).

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

46404497640 is a wasteful number, since it uses less digits than its factorization.

46404497640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136682 (or 2136678 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 48.

The spelling of 46404497640 in words is "forty-six billion, four hundred four million, four hundred ninety-seven thousand, six hundred forty".