11900157388 has 24 divisors (see below), whose sum is σ = 23807646464. Its totient is φ = 5098496400.

The previous prime is 11900157371. The next prime is 11900157413. The reversal of 11900157388 is 88375100911.

It is a super-2 number, since 2×11900157388² (a number of 21 digits) contains 22 as substring.

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, 29473 + ... + 157063.

Almost surely, 2^11900157388 is an apocalyptic number.

It is an amenable number.

11900157388 is an abundant number, since it is smaller than the sum of its proper divisors (11907489076).

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

11900157388 is a wasteful number, since it uses less digits than its factorization.

11900157388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130933 (or 130931 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 43.

The spelling of 11900157388 in words is "eleven billion, nine hundred million, one hundred fifty-seven thousand, three hundred eighty-eight".