11897534290 has 8 divisors (see below), whose sum is σ = 21415561740. Its totient is φ = 4759013712.

The previous prime is 11897534273. The next prime is 11897534353. The reversal of 11897534290 is 9243579811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11857249881 + 40284409 = 108891^2 + 6347^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594876705 + ... + 594876724.

Almost surely, 2^11897534290 is an apocalyptic number.

11897534290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11897534290 is a deficient number, since it is larger than the sum of its proper divisors (9518027450).

11897534290 is a wasteful number, since it uses less digits than its factorization.

11897534290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189753436.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 11897534290 in words is "eleven billion, eight hundred ninety-seven million, five hundred thirty-four thousand, two hundred ninety".