75671557716 has 96 divisors (see below), whose sum is σ = 187196800000. Its totient is φ = 23724949248.

The previous prime is 75671557657. The next prime is 75671557727. The reversal of 75671557716 is 61775517657.

It is a Harshad number since it is a multiple of its sum of digits (57).

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, 24816960 + ... + 24820008.

Almost surely, 2^75671557716 is an apocalyptic number.

75671557716 is a gapful number since it is divisible by the number (76) 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 75671557716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93598400000).

75671557716 is an abundant number, since it is smaller than the sum of its proper divisors (111525242284).

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

75671557716 is a wasteful number, since it uses less digits than its factorization.

75671557716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821 (or 3819 counting only the distinct ones).

The product of its digits is 10804500, while the sum is 57.

The spelling of 75671557716 in words is "seventy-five billion, six hundred seventy-one million, five hundred fifty-seven thousand, seven hundred sixteen".