157251738542 has 8 divisors (see below), whose sum is σ = 237439711632. Its totient is φ = 78105168000.

The previous prime is 157251738517. The next prime is 157251738557. The reversal of 157251738542 is 245837152751.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260350259 + ... + 260350862.

It is an arithmetic number, because the mean of its divisors is an integer number (29679963954).

Almost surely, 2^157251738542 is an apocalyptic number.

157251738542 is a deficient number, since it is larger than the sum of its proper divisors (80187973090).

157251738542 is a wasteful number, since it uses less digits than its factorization.

157251738542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520701274.

The product of its digits is 2352000, while the sum is 50.

The spelling of 157251738542 in words is "one hundred fifty-seven billion, two hundred fifty-one million, seven hundred thirty-eight thousand, five hundred forty-two".