9940013757 has 6 divisors (see below), whose sum is σ = 14357797662. Its totient is φ = 6626675832.

The previous prime is 9940013717. The next prime is 9940013767. The reversal of 9940013757 is 7573100499.

It can be written as a sum of positive squares in only one way, i.e., 6725804121 + 3214209636 = 82011^2 + 56694^2 .

It is not a de Polignac number, because 9940013757 - 2¹² = 9940009661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9940013717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 552222978 + ... + 552222995.

It is an arithmetic number, because the mean of its divisors is an integer number (2392966277).

Almost surely, 2^9940013757 is an apocalyptic number.

It is an amenable number.

9940013757 is a deficient number, since it is larger than the sum of its proper divisors (4417783905).

9940013757 is a wasteful number, since it uses less digits than its factorization.

9940013757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104445979 (or 1104445976 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 9940013757 is about 99699.6176371805. The cubic root of 9940013757 is about 2150.1181659950.

The spelling of 9940013757 in words is "nine billion, nine hundred forty million, thirteen thousand, seven hundred fifty-seven".