909454012690 has 32 divisors (see below), whose sum is σ = 1659895776000. Its totient is φ = 358709465088.

The previous prime is 909454012679. The next prime is 909454012693. The reversal of 909454012690 is 96210454909.

It is a super-2 number, since 2×909454012690² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (909454012693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141000 + ... + 1356019.

It is an arithmetic number, because the mean of its divisors is an integer number (51871743000).

Almost surely, 2^909454012690 is an apocalyptic number.

909454012690 is a deficient number, since it is larger than the sum of its proper divisors (750441763310).

909454012690 is a wasteful number, since it uses less digits than its factorization.

909454012690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497874.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 909454012690 in words is "nine hundred nine billion, four hundred fifty-four million, twelve thousand, six hundred ninety".