40277801653 has 2 divisors, whose sum is σ = 40277801654. Its totient is φ = 40277801652.

The previous prime is 40277801639. The next prime is 40277801717. The reversal of 40277801653 is 35610877204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34662247684 + 5615553969 = 186178^2 + 74937^2 .

It is a cyclic number.

It is not a de Polignac number, because 40277801653 - 2⁹ = 40277801141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40277861653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20138900826 + 20138900827.

It is an arithmetic number, because the mean of its divisors is an integer number (20138900827).

Almost surely, 2^40277801653 is an apocalyptic number.

It is an amenable number.

40277801653 is a deficient number, since it is larger than the sum of its proper divisors (1).

40277801653 is an equidigital number, since it uses as much as digits as its factorization.

40277801653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 40277801653 in words is "forty billion, two hundred seventy-seven million, eight hundred one thousand, six hundred fifty-three".