157434737290 has 36 divisors (see below), whose sum is σ = 285047728722. Its totient is φ = 62606008080.

The previous prime is 157434737233. The next prime is 157434737297. The reversal of 157434737290 is 92737434751.

It can be written as a sum of positive squares in only one way, i.e., 141691263561 + 15743473729 = 376419^2 + 125473^2 .

It is not an unprimeable number, because it can be changed into a prime (157434737297) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 340031599 + ... + 340032061.

Almost surely, 2^157434737290 is an apocalyptic number.

157434737290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157434737290 is a deficient number, since it is larger than the sum of its proper divisors (127612991432).

157434737290 is an frugal number, since it uses more digits than its factorization.

157434737290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 52.

The spelling of 157434737290 in words is "one hundred fifty-seven billion, four hundred thirty-four million, seven hundred thirty-seven thousand, two hundred ninety".