11388762740 has 24 divisors (see below), whose sum is σ = 25323249672. Its totient is φ = 4287534080.

The previous prime is 11388762713. The next prime is 11388762761. The reversal of 11388762740 is 4726788311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1032851044 + 10355911696 = 32138^2 + 101764^2 .

It is a congruent number.

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, 16747841 + ... + 16748520.

It is an arithmetic number, because the mean of its divisors is an integer number (1055135403).

Almost surely, 2^11388762740 is an apocalyptic number.

11388762740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11388762740 is an abundant number, since it is smaller than the sum of its proper divisors (13934486932).

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

11388762740 is a wasteful number, since it uses less digits than its factorization.

11388762740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33496387 (or 33496385 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 11388762740 in words is "eleven billion, three hundred eighty-eight million, seven hundred sixty-two thousand, seven hundred forty".