157715074396438 has 32 divisors (see below), whose sum is σ = 255109231915776. Its totient is φ = 72694830038688.

The previous prime is 157715074396409. The next prime is 157715074396447. The reversal of 157715074396438 is 834693470517751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103547145 + ... + 105059227.

It is an arithmetic number, because the mean of its divisors is an integer number (7972163497368).

Almost surely, 2^{157715074396438} is an apocalyptic number.

157715074396438 is a deficient number, since it is larger than the sum of its proper divisors (97394157519338).

157715074396438 is a wasteful number, since it uses less digits than its factorization.

157715074396438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517428.

The product of its (nonzero) digits is 533433600, while the sum is 70.

The spelling of 157715074396438 in words is "one hundred fifty-seven trillion, seven hundred fifteen billion, seventy-four million, three hundred ninety-six thousand, four hundred thirty-eight".