1156097979407 has 4 divisors (see below), whose sum is σ = 1321254833616. Its totient is φ = 990941125200.

The previous prime is 1156097979383. The next prime is 1156097979409. The reversal of 1156097979407 is 7049797906511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1156097979407 - 2¹⁴ = 1156097963023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156097979409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82578427094 + ... + 82578427107.

It is an arithmetic number, because the mean of its divisors is an integer number (330313708404).

Almost surely, 2^{1156097979407} is an apocalyptic number.

1156097979407 is a deficient number, since it is larger than the sum of its proper divisors (165156854209).

1156097979407 is an equidigital number, since it uses as much as digits as its factorization.

1156097979407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165156854208.

The product of its (nonzero) digits is 30005640, while the sum is 65.

The spelling of 1156097979407 in words is "one trillion, one hundred fifty-six billion, ninety-seven million, nine hundred seventy-nine thousand, four hundred seven".