75839956479 has 80 divisors (see below), whose sum is σ = 133905530880. Its totient is φ = 41859918720.

The previous prime is 75839956463. The next prime is 75839956501. The reversal of 75839956479 is 97465993857.

75839956479 is a `hidden beast` number, since 7 + 58 + 3 + 9 + 9 + 564 + 7 + 9 = 666.

It is not a de Polignac number, because 75839956479 - 2⁴ = 75839956463 is a prime.

It is a super-2 number, since 2×75839956479² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75839956429) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9997522 + ... + 10005104.

It is an arithmetic number, because the mean of its divisors is an integer number (1673819136).

Almost surely, 2^75839956479 is an apocalyptic number.

75839956479 is a deficient number, since it is larger than the sum of its proper divisors (58065574401).

75839956479 is a wasteful number, since it uses less digits than its factorization.

75839956479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8202 (or 8193 counting only the distinct ones).

The product of its digits is 514382400, while the sum is 72.

The spelling of 75839956479 in words is "seventy-five billion, eight hundred thirty-nine million, nine hundred fifty-six thousand, four hundred seventy-nine".