40077164925 has 108 divisors (see below), whose sum is σ = 83625374196. Its totient is φ = 18293990400.

The previous prime is 40077164923. The next prime is 40077164927. The reversal of 40077164925 is 52946177004.

It is an interprime number because it is at equal distance from previous prime (40077164923) and next prime (40077164927).

It can be written as a sum of positive squares in 6 ways, for example, as 2148044409 + 37929120516 = 46347^2 + 194754^2 .

It is not a de Polignac number, because 40077164925 - 2¹ = 40077164923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40077164921) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 8784645 + ... + 8789205.

Almost surely, 2^40077164925 is an apocalyptic number.

40077164925 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40077164925 is an abundant number, since it is smaller than the sum of its proper divisors (43548209271).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40077164925 is a wasteful number, since it uses less digits than its factorization.

40077164925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5388 (or 5373 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 40077164925 in words is "forty billion, seventy-seven million, one hundred sixty-four thousand, nine hundred twenty-five".