157144442872 has 8 divisors (see below), whose sum is σ = 294645830400. Its totient is φ = 78572221432.

The previous prime is 157144442867. The next prime is 157144442893. The reversal of 157144442872 is 278244441751.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9821527672 + ... + 9821527687.

It is an arithmetic number, because the mean of its divisors is an integer number (36830728800).

Almost surely, 2^157144442872 is an apocalyptic number.

It is an amenable number.

157144442872 is a deficient number, since it is larger than the sum of its proper divisors (137501387528).

157144442872 is a wasteful number, since it uses less digits than its factorization.

157144442872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19643055365 (or 19643055361 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 49.

The spelling of 157144442872 in words is "one hundred fifty-seven billion, one hundred forty-four million, four hundred forty-two thousand, eight hundred seventy-two".