1158247789940 has 12 divisors (see below), whose sum is σ = 2432320358916. Its totient is φ = 463299115968.

The previous prime is 1158247789939. The next prime is 1158247789991. The reversal of 1158247789940 is 499877428511.

It can be written as a sum of positive squares in 2 ways, for example, as 318554132836 + 839693657104 = 564406^2 + 916348^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28956194729 + ... + 28956194768.

It is an arithmetic number, because the mean of its divisors is an integer number (202693363243).

Almost surely, 2^{1158247789940} is an apocalyptic number.

1158247789940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1158247789940 is an abundant number, since it is smaller than the sum of its proper divisors (1274072568976).

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

1158247789940 is a wasteful number, since it uses less digits than its factorization.

1158247789940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57912389506 (or 57912389504 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 65.

The spelling of 1158247789940 in words is "one trillion, one hundred fifty-eight billion, two hundred forty-seven million, seven hundred eighty-nine thousand, nine hundred forty".