11899907278 has 8 divisors (see below), whose sum is σ = 20399841072. Its totient is φ = 5099960256.

The previous prime is 11899907263. The next prime is 11899907293. The reversal of 11899907278 is 87270999811.

It is an interprime number because it is at equal distance from previous prime (11899907263) and next prime (11899907293).

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

It is a congruent number.

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, 424996675 + ... + 424996702.

It is an arithmetic number, because the mean of its divisors is an integer number (2549980134).

Almost surely, 2^11899907278 is an apocalyptic number.

11899907278 is a deficient number, since it is larger than the sum of its proper divisors (8499933794).

11899907278 is an equidigital number, since it uses as much as digits as its factorization.

11899907278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849993386.

The product of its (nonzero) digits is 4572288, while the sum is 61.

The spelling of 11899907278 in words is "eleven billion, eight hundred ninety-nine million, nine hundred seven thousand, two hundred seventy-eight".