1157447977836 has 24 divisors (see below), whose sum is σ = 2703173886000. Its totient is φ = 385464287232.

The previous prime is 1157447977831. The next prime is 1157447977877. The reversal of 1157447977836 is 6387797447511.

It is a super-3 number, since 3×1157447977836³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1157447977831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43949461 + ... + 43975788.

It is an arithmetic number, because the mean of its divisors is an integer number (112632245250).

Almost surely, 2^{1157447977836} is an apocalyptic number.

It is an amenable number.

1157447977836 is an abundant number, since it is smaller than the sum of its proper divisors (1545725908164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1157447977836 is a wasteful number, since it uses less digits than its factorization.

1157447977836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87926353 (or 87926351 counting only the distinct ones).

The product of its digits is 248935680, while the sum is 69.

The spelling of 1157447977836 in words is "one trillion, one hundred fifty-seven billion, four hundred forty-seven million, nine hundred seventy-seven thousand, eight hundred thirty-six".