15216748894 has 16 divisors (see below), whose sum is σ = 23853709440. Its totient is φ = 7266517720.

The previous prime is 15216748889. The next prime is 15216748901. The reversal of 15216748894 is 49884761251.

It is a super-4 number, since 4×15216748894⁴ (a number of 42 digits) contains 4444 as substring.

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, 220672 + ... + 281299.

It is an arithmetic number, because the mean of its divisors is an integer number (1490856840).

Almost surely, 2^15216748894 is an apocalyptic number.

15216748894 is a deficient number, since it is larger than the sum of its proper divisors (8636960546).

15216748894 is a wasteful number, since it uses less digits than its factorization.

15216748894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502655.

The product of its digits is 3870720, while the sum is 55.

The spelling of 15216748894 in words is "fifteen billion, two hundred sixteen million, seven hundred forty-eight thousand, eight hundred ninety-four".