13195474740 has 72 divisors (see below), whose sum is σ = 45744316800. Its totient is φ = 3016108224.

The previous prime is 13195474703. The next prime is 13195474741. The reversal of 13195474740 is 4747459131.

It is a happy number.

13195474740 is a `hidden beast` number, since 1 + 31 + 9 + 547 + 4 + 74 + 0 = 666.

It is a super-2 number, since 2×13195474740² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13195474741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5235040 + ... + 5237559.

Almost surely, 2^13195474740 is an apocalyptic number.

13195474740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13195474740 is an abundant number, since it is smaller than the sum of its proper divisors (32548842060).

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

13195474740 is a wasteful number, since it uses less digits than its factorization.

13195474740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10472621 (or 10472616 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 13195474740 in words is "thirteen billion, one hundred ninety-five million, four hundred seventy-four thousand, seven hundred forty".