40621336624 has 80 divisors (see below), whose sum is σ = 86491098144. Its totient is φ = 18328780800.

The previous prime is 40621336603. The next prime is 40621336643. The reversal of 40621336624 is 42663312604.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14971492 + ... + 14974204.

Almost surely, 2^40621336624 is an apocalyptic number.

40621336624 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40621336624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43245549072).

40621336624 is an abundant number, since it is smaller than the sum of its proper divisors (45869761520).

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

40621336624 is a wasteful number, since it uses less digits than its factorization.

40621336624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326 (or 3320 counting only the distinct ones).

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

The spelling of 40621336624 in words is "forty billion, six hundred twenty-one million, three hundred thirty-six thousand, six hundred twenty-four".