37436221415640 has 128 divisors (see below), whose sum is σ = 117237828211200. Its totient is φ = 9545186534400.

The previous prime is 37436221415623. The next prime is 37436221415669. The reversal of 37436221415640 is 4651412263473.

It is a self number, because there is not a number n which added to its sum of digits gives 37436221415640.

It is a congruent number.

It is an unprimeable number.

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, 4336540 + ... + 9678740.

It is an arithmetic number, because the mean of its divisors is an integer number (915920532900).

Almost surely, 2^{37436221415640} is an apocalyptic number.

37436221415640 is a gapful number since it is divisible by the number (30) 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 37436221415640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58618914105600).

37436221415640 is an abundant number, since it is smaller than the sum of its proper divisors (79801606795560).

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

37436221415640 is a wasteful number, since it uses less digits than its factorization.

37436221415640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5344777 (or 5344773 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 37436221415640 in words is "thirty-seven trillion, four hundred thirty-six billion, two hundred twenty-one million, four hundred fifteen thousand, six hundred forty".