40577857501 has 2 divisors, whose sum is σ = 40577857502. Its totient is φ = 40577857500.

The previous prime is 40577857499. The next prime is 40577857511. The reversal of 40577857501 is 10575877504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22710188601 + 17867668900 = 150699^2 + 133670^2 .

It is a cyclic number.

It is not a de Polignac number, because 40577857501 - 2¹ = 40577857499 is a prime.

Together with 40577857499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40577857511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20288928750 + 20288928751.

It is an arithmetic number, because the mean of its divisors is an integer number (20288928751).

Almost surely, 2^40577857501 is an apocalyptic number.

It is an amenable number.

40577857501 is a deficient number, since it is larger than the sum of its proper divisors (1).

40577857501 is an equidigital number, since it uses as much as digits as its factorization.

40577857501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1372000, while the sum is 49.

The spelling of 40577857501 in words is "forty billion, five hundred seventy-seven million, eight hundred fifty-seven thousand, five hundred one".