156894349534 has 32 divisors (see below), whose sum is σ = 265941688320. Its totient is φ = 68877396192.

The previous prime is 156894349481. The next prime is 156894349543. The reversal of 156894349534 is 435943498651.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625822 + ... + 839905.

It is an arithmetic number, because the mean of its divisors is an integer number (8310677760).

Almost surely, 2^156894349534 is an apocalyptic number.

156894349534 is a deficient number, since it is larger than the sum of its proper divisors (109047338786).

156894349534 is a wasteful number, since it uses less digits than its factorization.

156894349534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465944.

The product of its digits is 55987200, while the sum is 61.

The spelling of 156894349534 in words is "one hundred fifty-six billion, eight hundred ninety-four million, three hundred forty-nine thousand, five hundred thirty-four".