15391288290387 has 16 divisors (see below), whose sum is σ = 20684963561472. Its totient is φ = 10179248889600.

The previous prime is 15391288290359. The next prime is 15391288290439. The reversal of 15391288290387 is 78309288219351.

It is a de Polignac number, because none of the positive numbers 2^k-15391288290387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15391288290347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3160387 + ... + 6385187.

It is an arithmetic number, because the mean of its divisors is an integer number (1292810222592).

Almost surely, 2^{15391288290387} is an apocalyptic number.

15391288290387 is a deficient number, since it is larger than the sum of its proper divisors (5293675271085).

15391288290387 is a wasteful number, since it uses less digits than its factorization.

15391288290387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237458.

The product of its (nonzero) digits is 52254720, while the sum is 66.

The spelling of 15391288290387 in words is "fifteen trillion, three hundred ninety-one billion, two hundred eighty-eight million, two hundred ninety thousand, three hundred eighty-seven".