1157978570 has 16 divisors (see below), whose sum is σ = 2382127488. Its totient is φ = 397021200.

The previous prime is 1157978537. The next prime is 1157978573. The reversal of 1157978570 is 758797511.

It is not an unprimeable number, because it can be changed into a prime (1157978573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8271206 + ... + 8271345.

It is an arithmetic number, because the mean of its divisors is an integer number (148882968).

Almost surely, 2^1157978570 is an apocalyptic number.

1157978570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157978570 is an abundant number, since it is smaller than the sum of its proper divisors (1224148918).

1157978570 is a wasteful number, since it uses less digits than its factorization.

1157978570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16542565.

The product of its (nonzero) digits is 617400, while the sum is 50.

The square root of 1157978570 is about 34029.0841780968. The cubic root of 1157978570 is about 1050.1068885894.

The spelling of 1157978570 in words is "one billion, one hundred fifty-seven million, nine hundred seventy-eight thousand, five hundred seventy".