15745397882 has 4 divisors (see below), whose sum is σ = 23618096826. Its totient is φ = 7872698940.

The previous prime is 15745397851. The next prime is 15745397933. The reversal of 15745397882 is 28879354751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10285813561 + 5459584321 = 101419^2 + 73889^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3936349469 + ... + 3936349472.

Almost surely, 2^15745397882 is an apocalyptic number.

15745397882 is a deficient number, since it is larger than the sum of its proper divisors (7872698944).

15745397882 is an equidigital number, since it uses as much as digits as its factorization.

15745397882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7872698943.

The product of its digits is 16934400, while the sum is 59.

The spelling of 15745397882 in words is "fifteen billion, seven hundred forty-five million, three hundred ninety-seven thousand, eight hundred eighty-two".