11858687924 has 6 divisors (see below), whose sum is σ = 20752703874. Its totient is φ = 5929343960.

The previous prime is 11858687879. The next prime is 11858687957. The reversal of 11858687924 is 42978685811.

It can be written as a sum of positive squares in only one way, i.e., 10861391524 + 997296400 = 104218^2 + 31580^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1482335987 + ... + 1482335994.

It is an arithmetic number, because the mean of its divisors is an integer number (3458783979).

Almost surely, 2^11858687924 is an apocalyptic number.

It is an amenable number.

11858687924 is a deficient number, since it is larger than the sum of its proper divisors (8894015950).

11858687924 is a wasteful number, since it uses less digits than its factorization.

11858687924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964671985 (or 2964671983 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 59.

The spelling of 11858687924 in words is "eleven billion, eight hundred fifty-eight million, six hundred eighty-seven thousand, nine hundred twenty-four".