40370400613 has 4 divisors (see below), whose sum is σ = 42495158560. Its totient is φ = 38245642668.

The previous prime is 40370400583. The next prime is 40370400673. The reversal of 40370400613 is 31600407304.

40370400613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40370400613 is a prime.

It is a super-2 number, since 2×40370400613² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40370400673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062378945 + ... + 1062378982.

It is an arithmetic number, because the mean of its divisors is an integer number (10623789640).

Almost surely, 2^40370400613 is an apocalyptic number.

It is an amenable number.

40370400613 is a deficient number, since it is larger than the sum of its proper divisors (2124757947).

40370400613 is a wasteful number, since it uses less digits than its factorization.

40370400613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124757946.

The product of its (nonzero) digits is 6048, while the sum is 28.

Adding to 40370400613 its reverse (31600407304), we get a palindrome (71970807917).

The spelling of 40370400613 in words is "forty billion, three hundred seventy million, four hundred thousand, six hundred thirteen".