157925799703451 has 8 divisors (see below), whose sum is σ = 170075878705824. Its totient is φ = 145775997924480.

The previous prime is 157925799703349. The next prime is 157925799703471. The reversal of 157925799703451 is 154307997529751.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157925799703451 - 2²² = 157925795509147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157925799703471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68121935 + ... + 70402056.

It is an arithmetic number, because the mean of its divisors is an integer number (21259484838228).

Almost surely, 2^{157925799703451} is an apocalyptic number.

157925799703451 is a deficient number, since it is larger than the sum of its proper divisors (12150079002373).

157925799703451 is a wasteful number, since it uses less digits than its factorization.

157925799703451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138611701.

The product of its (nonzero) digits is 750141000, while the sum is 74.

The spelling of 157925799703451 in words is "one hundred fifty-seven trillion, nine hundred twenty-five billion, seven hundred ninety-nine million, seven hundred three thousand, four hundred fifty-one".