1158981094977 has 8 divisors (see below), whose sum is σ = 1545332196480. Its totient is φ = 772642028400.

The previous prime is 1158981094969. The next prime is 1158981094991. The reversal of 1158981094977 is 7794901898511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1158981094977 - 2³ = 1158981094969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1158981094907) 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, 2781577 + ... + 3170982.

It is an arithmetic number, because the mean of its divisors is an integer number (193166524560).

Almost surely, 2^{1158981094977} is an apocalyptic number.

It is an amenable number.

1158981094977 is a deficient number, since it is larger than the sum of its proper divisors (386351101503).

1158981094977 is an equidigital number, since it uses as much as digits as its factorization.

1158981094977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6017463.

The product of its (nonzero) digits is 45722880, while the sum is 69.

The spelling of 1158981094977 in words is "one trillion, one hundred fifty-eight billion, nine hundred eighty-one million, ninety-four thousand, nine hundred seventy-seven".