1015491022947 has 12 divisors (see below), whose sum is σ = 1467725273664. Its totient is φ = 676576365840.

The previous prime is 1015491022933. The next prime is 1015491022979. The reversal of 1015491022947 is 7492201945101.

1015491022947 is a `hidden beast` number, since 1 + 0 + 1 + 549 + 10 + 2 + 2 + 94 + 7 = 666.

It is not a de Polignac number, because 1015491022947 - 2¹⁵ = 1015490990179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1015491022907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34788723 + ... + 34817900.

It is an arithmetic number, because the mean of its divisors is an integer number (122310439472).

Almost surely, 2^{1015491022947} is an apocalyptic number.

1015491022947 is a deficient number, since it is larger than the sum of its proper divisors (452234250717).

1015491022947 is a wasteful number, since it uses less digits than its factorization.

1015491022947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69608250 (or 69608247 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 1015491022947 in words is "one trillion, fifteen billion, four hundred ninety-one million, twenty-two thousand, nine hundred forty-seven".