15700400044 has 24 divisors (see below), whose sum is σ = 31416825888. Its totient is φ = 6725308800.

The previous prime is 15700400041. The next prime is 15700400063. The reversal of 15700400044 is 44000400751.

It is a junction number, because it is equal to n+sod(n) for n = 15700399991 and 15700400018.

It is not an unprimeable number, because it can be changed into a prime (15700400041) 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 7 ways as a sum of consecutive naturals, for example, 86857 + ... + 197344.

It is an arithmetic number, because the mean of its divisors is an integer number (1309034412).

Almost surely, 2^15700400044 is an apocalyptic number.

15700400044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15700400044 is an abundant number, since it is smaller than the sum of its proper divisors (15716425844).

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

15700400044 is a wasteful number, since it uses less digits than its factorization.

15700400044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286185 (or 286183 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

Adding to 15700400044 its reverse (44000400751), we get a palindrome (59700800795).

The spelling of 15700400044 in words is "fifteen billion, seven hundred million, four hundred thousand, forty-four".