40002799537 has 2 divisors, whose sum is σ = 40002799538. Its totient is φ = 40002799536.

The previous prime is 40002799429. The next prime is 40002799553. The reversal of 40002799537 is 73599720004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36821388321 + 3181411216 = 191889^2 + 56404^2 .

It is a cyclic number.

It is not a de Polignac number, because 40002799537 - 2⁷ = 40002799409 is a prime.

It is not a weakly prime, because it can be changed into another prime (40002799567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20001399768 + 20001399769.

It is an arithmetic number, because the mean of its divisors is an integer number (20001399769).

Almost surely, 2^40002799537 is an apocalyptic number.

It is an amenable number.

40002799537 is a deficient number, since it is larger than the sum of its proper divisors (1).

40002799537 is an equidigital number, since it uses as much as digits as its factorization.

40002799537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 46.

The spelling of 40002799537 in words is "forty billion, two million, seven hundred ninety-nine thousand, five hundred thirty-seven".