1158008998923 has 24 divisors (see below), whose sum is σ = 1918740376800. Its totient is φ = 659259494784.

The previous prime is 1158008998877. The next prime is 1158008998967. The reversal of 1158008998923 is 3298998008511.

It is not a de Polignac number, because 1158008998923 - 2¹⁶ = 1158008933387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1158008958923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34148658 + ... + 34182551.

It is an arithmetic number, because the mean of its divisors is an integer number (79947515700).

Almost surely, 2^{1158008998923} is an apocalyptic number.

1158008998923 is a deficient number, since it is larger than the sum of its proper divisors (760731377877).

1158008998923 is a wasteful number, since it uses less digits than its factorization.

1158008998923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68331491 (or 68331488 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 63.

The spelling of 1158008998923 in words is "one trillion, one hundred fifty-eight billion, eight million, nine hundred ninety-eight thousand, nine hundred twenty-three".