40376278513 has 2 divisors, whose sum is σ = 40376278514. Its totient is φ = 40376278512.

The previous prime is 40376278463. The next prime is 40376278549. The reversal of 40376278513 is 31587267304.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22493100529 + 17883177984 = 149977^2 + 133728^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40376278513 is a prime.

It is not a weakly prime, because it can be changed into another prime (40376278573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20188139256 + 20188139257.

It is an arithmetic number, because the mean of its divisors is an integer number (20188139257).

Almost surely, 2^40376278513 is an apocalyptic number.

It is an amenable number.

40376278513 is a deficient number, since it is larger than the sum of its proper divisors (1).

40376278513 is an equidigital number, since it uses as much as digits as its factorization.

40376278513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 40376278513 in words is "forty billion, three hundred seventy-six million, two hundred seventy-eight thousand, five hundred thirteen".