40351212514637 has 2 divisors, whose sum is σ = 40351212514638. Its totient is φ = 40351212514636.

The previous prime is 40351212514621. The next prime is 40351212514681. The reversal of 40351212514637 is 73641521215304.

It is an a-pointer prime, because the next prime (40351212514681) can be obtained adding 40351212514637 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28256996064361 + 12094216450276 = 5315731^2 + 3477674^2 .

It is a cyclic number.

It is not a de Polignac number, because 40351212514637 - 2⁴ = 40351212514621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40351212514337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20175606257318 + 20175606257319.

It is an arithmetic number, because the mean of its divisors is an integer number (20175606257319).

Almost surely, 2^{40351212514637} is an apocalyptic number.

It is an amenable number.

40351212514637 is a deficient number, since it is larger than the sum of its proper divisors (1).

40351212514637 is an equidigital number, since it uses as much as digits as its factorization.

40351212514637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 40351212514637 in words is "forty trillion, three hundred fifty-one billion, two hundred twelve million, five hundred fourteen thousand, six hundred thirty-seven".