40632621634 has 8 divisors (see below), whose sum is σ = 66489744528. Its totient is φ = 18469373460.

The previous prime is 40632621619. The next prime is 40632621671. The reversal of 40632621634 is 43612623604.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40632621593 and 40632621602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923468652 + ... + 923468695.

It is an arithmetic number, because the mean of its divisors is an integer number (8311218066).

Almost surely, 2^40632621634 is an apocalyptic number.

40632621634 is a deficient number, since it is larger than the sum of its proper divisors (25857122894).

40632621634 is a wasteful number, since it uses less digits than its factorization.

40632621634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846937360.

The product of its (nonzero) digits is 124416, while the sum is 37.

It can be divided in two parts, 40632 and 621634, that added together give a palindrome (662266).

The spelling of 40632621634 in words is "forty billion, six hundred thirty-two million, six hundred twenty-one thousand, six hundred thirty-four".