13775387740 has 48 divisors (see below), whose sum is σ = 29182712832. Its totient is φ = 5461779456.

The previous prime is 13775387737. The next prime is 13775387753. The reversal of 13775387740 is 4778357731.

It is a happy number.

It is a super-2 number, since 2×13775387740² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4156324 + ... + 4159636.

It is an arithmetic number, because the mean of its divisors is an integer number (607973184).

Almost surely, 2^13775387740 is an apocalyptic number.

13775387740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13775387740 is an abundant number, since it is smaller than the sum of its proper divisors (15407325092).

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

13775387740 is a wasteful number, since it uses less digits than its factorization.

13775387740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5086 (or 5084 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 52.

The spelling of 13775387740 in words is "thirteen billion, seven hundred seventy-five million, three hundred eighty-seven thousand, seven hundred forty".