40634422521 has 48 divisors (see below), whose sum is σ = 68782131648. Its totient is φ = 21100262400.

The previous prime is 40634422519. The next prime is 40634422583. The reversal of 40634422521 is 12522443604.

It is not a de Polignac number, because 40634422521 - 2¹ = 40634422519 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (40634422021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6906501 + ... + 6912381.

It is an arithmetic number, because the mean of its divisors is an integer number (1432961076).

Almost surely, 2^40634422521 is an apocalyptic number.

It is an amenable number.

40634422521 is a deficient number, since it is larger than the sum of its proper divisors (28147709127).

40634422521 is a wasteful number, since it uses less digits than its factorization.

40634422521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10182 (or 10175 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 40634422521 in words is "forty billion, six hundred thirty-four million, four hundred twenty-two thousand, five hundred twenty-one".