1091271400008 has 32 divisors (see below), whose sum is σ = 2728564315200. Its totient is φ = 363705691328.

The previous prime is 1091271399997. The next prime is 1091271400031. The reversal of 1091271400008 is 8000041721901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3041691 + ... + 3381482.

It is an arithmetic number, because the mean of its divisors is an integer number (85267634850).

Almost surely, 2^{1091271400008} is an apocalyptic number.

It is an amenable number.

1091271400008 is an abundant number, since it is smaller than the sum of its proper divisors (1637292915192).

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

1091271400008 is a wasteful number, since it uses less digits than its factorization.

1091271400008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6430261 (or 6430257 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 33.

The spelling of 1091271400008 in words is "one trillion, ninety-one billion, two hundred seventy-one million, four hundred thousand, eight".