75401683740 has 144 divisors (see below), whose sum is σ = 236962908000. Its totient is φ = 19384425984.

The previous prime is 75401683729. The next prime is 75401683751. The reversal of 75401683740 is 4738610457.

75401683740 is a `hidden beast` number, since 7 + 540 + 1 + 68 + 3 + 7 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (75401683729) and next prime (75401683751).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3554686 + ... + 3575834.

It is an arithmetic number, because the mean of its divisors is an integer number (1645575750).

Almost surely, 2^75401683740 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 75401683740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118481454000).

75401683740 is an abundant number, since it is smaller than the sum of its proper divisors (161561224260).

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

75401683740 is a wasteful number, since it uses less digits than its factorization.

75401683740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21876 (or 21871 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 75401683740 in words is "seventy-five billion, four hundred one million, six hundred eighty-three thousand, seven hundred forty".