40000672358797 has 2 divisors, whose sum is σ = 40000672358798. Its totient is φ = 40000672358796.

The previous prime is 40000672358789. The next prime is 40000672358831. The reversal of 40000672358797 is 79785327600004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39518183749801 + 482488608996 = 6286349^2 + 694614^2 .

It is a cyclic number.

It is not a de Polignac number, because 40000672358797 - 2³ = 40000672358789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40000672358707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20000336179398 + 20000336179399.

It is an arithmetic number, because the mean of its divisors is an integer number (20000336179399).

Almost surely, 2^{40000672358797} is an apocalyptic number.

It is an amenable number.

40000672358797 is a deficient number, since it is larger than the sum of its proper divisors (1).

40000672358797 is an equidigital number, since it uses as much as digits as its factorization.

40000672358797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17781120, while the sum is 58.

The spelling of 40000672358797 in words is "forty trillion, six hundred seventy-two million, three hundred fifty-eight thousand, seven hundred ninety-seven".