15473750064 has 40 divisors (see below), whose sum is σ = 42325259760. Its totient is φ = 4854509568.

The previous prime is 15473750063. The next prime is 15473750087. The reversal of 15473750064 is 46005737451.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15473749998 and 15473750025.

It is not an unprimeable number, because it can be changed into a prime (15473750063) 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, 9480649 + ... + 9482280.

It is an arithmetic number, because the mean of its divisors is an integer number (1058131494).

Almost surely, 2^15473750064 is an apocalyptic number.

It is an amenable number.

15473750064 is an abundant number, since it is smaller than the sum of its proper divisors (26851509696).

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

15473750064 is a wasteful number, since it uses less digits than its factorization.

15473750064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18962957 (or 18962951 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 15473750064 in words is "fifteen billion, four hundred seventy-three million, seven hundred fifty thousand, sixty-four".