11157734434 has 64 divisors (see below), whose sum is σ = 21329049600. Its totient is φ = 4339663440.

The previous prime is 11157734407. The next prime is 11157734449. The reversal of 11157734434 is 43443775111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6692469 + ... + 6694135.

It is an arithmetic number, because the mean of its divisors is an integer number (333266400).

Almost surely, 2^11157734434 is an apocalyptic number.

11157734434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11157734434 is a deficient number, since it is larger than the sum of its proper divisors (10171315166).

11157734434 is a wasteful number, since it uses less digits than its factorization.

11157734434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588 (or 2574 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The spelling of 11157734434 in words is "eleven billion, one hundred fifty-seven million, seven hundred thirty-four thousand, four hundred thirty-four".