15726420027550 has 12 divisors (see below), whose sum is σ = 29251141251336. Its totient is φ = 6290568011000.

The previous prime is 15726420027499. The next prime is 15726420027671. The reversal of 15726420027550 is 5572002462751.

It is a self number, because there is not a number n which added to its sum of digits gives 15726420027550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157264200226 + ... + 157264200325.

It is an arithmetic number, because the mean of its divisors is an integer number (2437595104278).

Almost surely, 2^{15726420027550} is an apocalyptic number.

15726420027550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15726420027550 is a deficient number, since it is larger than the sum of its proper divisors (13524721223786).

15726420027550 is a wasteful number, since it uses less digits than its factorization.

15726420027550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314528400563 (or 314528400558 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 46.

The spelling of 15726420027550 in words is "fifteen trillion, seven hundred twenty-six billion, four hundred twenty million, twenty-seven thousand, five hundred fifty".