40254137625 has 32 divisors (see below), whose sum is σ = 72135423360. Its totient is φ = 19817419200.

The previous prime is 40254137569. The next prime is 40254137629. The reversal of 40254137625 is 52673145204.

It is not a de Polignac number, because 40254137625 - 2¹² = 40254133529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (40254137629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4123755 + ... + 4133504.

It is an arithmetic number, because the mean of its divisors is an integer number (2254231980).

Almost surely, 2^40254137625 is an apocalyptic number.

It is an amenable number.

40254137625 is a deficient number, since it is larger than the sum of its proper divisors (31881285735).

40254137625 is a wasteful number, since it uses less digits than its factorization.

40254137625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8257290 (or 8257280 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 40254137625 in words is "forty billion, two hundred fifty-four million, one hundred thirty-seven thousand, six hundred twenty-five".