40122151425 has 36 divisors (see below), whose sum is σ = 73219163004. Its totient is φ = 20994729600.

The previous prime is 40122151393. The next prime is 40122151541. The reversal of 40122151425 is 52415122104.

It is a happy number.

40122151425 is a `hidden beast` number, since 4 + 0 + 122 + 1 + 514 + 25 = 666.

40122151425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 3790741761 + 36331409664 = 61569^2 + 190608^2 .

It is not a de Polignac number, because 40122151425 - 2⁵ = 40122151393 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1670346 + ... + 1694195.

It is an arithmetic number, because the mean of its divisors is an integer number (2033865639).

Almost surely, 2^40122151425 is an apocalyptic number.

40122151425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40122151425 is a deficient number, since it is larger than the sum of its proper divisors (33097011579).

40122151425 is a wasteful number, since it uses less digits than its factorization.

40122151425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364610 (or 3364602 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 40122151425 its reverse (52415122104), we get a palindrome (92537273529).

The spelling of 40122151425 in words is "forty billion, one hundred twenty-two million, one hundred fifty-one thousand, four hundred twenty-five".