157887788751 has 24 divisors (see below), whose sum is σ = 284334720384. Its totient is φ = 82019630160.

The previous prime is 157887788731. The next prime is 157887788753.

157887788751 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 157887788751 - 2¹¹ = 157887786703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157887788751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157887788753) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113915461 + ... + 113916846.

It is an arithmetic number, because the mean of its divisors is an integer number (11847280016).

Almost surely, 2^157887788751 is an apocalyptic number.

157887788751 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

157887788751 is a deficient number, since it is larger than the sum of its proper divisors (126446931633).

157887788751 is a wasteful number, since it uses less digits than its factorization.

157887788751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227832331 (or 227832328 counting only the distinct ones).

The product of its digits is 245862400, while the sum is 72.

The spelling of 157887788751 in words is "one hundred fifty-seven billion, eight hundred eighty-seven million, seven hundred eighty-eight thousand, seven hundred fifty-one".