40148738013 has 16 divisors (see below), whose sum is σ = 54416902016. Its totient is φ = 26323323840.

The previous prime is 40148737997. The next prime is 40148738029. The reversal of 40148738013 is 31083784104.

It is an interprime number because it is at equal distance from previous prime (40148737997) and next prime (40148738029).

It is not a de Polignac number, because 40148738013 - 2⁴ = 40148737997 is a prime.

It is a super-2 number, since 2×40148738013² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is the 200372-nd Hogben number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40148738053) by changing a digit.

It is a nontrivial repunit in base 200371.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1995120 + ... + 2015142.

It is an arithmetic number, because the mean of its divisors is an integer number (3401056376).

Almost surely, 2^40148738013 is an apocalyptic number.

It is an amenable number.

40148738013 is a deficient number, since it is larger than the sum of its proper divisors (14268164003).

40148738013 is a wasteful number, since it uses less digits than its factorization.

40148738013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31044.

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 40148738013 in words is "forty billion, one hundred forty-eight million, seven hundred thirty-eight thousand, thirteen".