906871992291 has 12 divisors (see below), whose sum is σ = 1312594091640. Its totient is φ = 603349998720.

The previous prime is 906871992269. The next prime is 906871992307. The reversal of 906871992291 is 192299178609.

It is not a de Polignac number, because 906871992291 - 2⁶ = 906871992227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (906871992211) 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, 102606126 + ... + 102614963.

It is an arithmetic number, because the mean of its divisors is an integer number (109382840970).

Almost surely, 2^906871992291 is an apocalyptic number.

906871992291 is a deficient number, since it is larger than the sum of its proper divisors (405722099349).

906871992291 is a wasteful number, since it uses less digits than its factorization.

906871992291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205221586 (or 205221583 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 63.

The spelling of 906871992291 in words is "nine hundred six billion, eight hundred seventy-one million, nine hundred ninety-two thousand, two hundred ninety-one".