1153964486905 has 16 divisors (see below), whose sum is σ = 1481535086400. Its totient is φ = 860246170560.

The previous prime is 1153964486897. The next prime is 1153964486921. The reversal of 1153964486905 is 5096844693511.

It is a happy number.

It is not a de Polignac number, because 1153964486905 - 2³ = 1153964486897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99559735 + ... + 99571324.

It is an arithmetic number, because the mean of its divisors is an integer number (92595942900).

Almost surely, 2^{1153964486905} is an apocalyptic number.

It is an amenable number.

1153964486905 is a deficient number, since it is larger than the sum of its proper divisors (327570599495).

1153964486905 is a wasteful number, since it uses less digits than its factorization.

1153964486905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199131144.

The product of its (nonzero) digits is 27993600, while the sum is 61.

The spelling of 1153964486905 in words is "one trillion, one hundred fifty-three billion, nine hundred sixty-four million, four hundred eighty-six thousand, nine hundred five".