157170430479 has 4 divisors (see below), whose sum is σ = 209560573976. Its totient is φ = 104780286984.

The previous prime is 157170430421. The next prime is 157170430481. The reversal of 157170430479 is 974034071751.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 157170430479 - 2¹¹ = 157170428431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157170430489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26195071744 + ... + 26195071749.

It is an arithmetic number, because the mean of its divisors is an integer number (52390143494).

Almost surely, 2^157170430479 is an apocalyptic number.

157170430479 is a deficient number, since it is larger than the sum of its proper divisors (52390143497).

157170430479 is an equidigital number, since it uses as much as digits as its factorization.

157170430479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52390143496.

The product of its (nonzero) digits is 740880, while the sum is 48.

The spelling of 157170430479 in words is "one hundred fifty-seven billion, one hundred seventy million, four hundred thirty thousand, four hundred seventy-nine".