3750394672640 has 320 divisors, whose sum is σ = 11218159991808. Its totient is φ = 1168207872000.

The previous prime is 3750394672639. The next prime is 3750394672693. The reversal of 3750394672640 is 462764930573.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 364075490 + ... + 364085790.

Almost surely, 2^{3750394672640} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3750394672640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5609079995904).

3750394672640 is an abundant number, since it is smaller than the sum of its proper divisors (7467765319168).

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

3750394672640 is a wasteful number, since it uses less digits than its factorization.

3750394672640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12189 (or 12173 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 56.

The spelling of 3750394672640 in words is "three trillion, seven hundred fifty billion, three hundred ninety-four million, six hundred seventy-two thousand, six hundred forty".