71542400730 has 64 divisors (see below), whose sum is σ = 173198573568. Its totient is φ = 18911914560.

The previous prime is 71542400707. The next prime is 71542400779. The reversal of 71542400730 is 3700424517.

It is a junction number, because it is equal to n+sod(n) for n = 71542400691 and 71542400700.

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, 4957225 + ... + 4971635.

It is an arithmetic number, because the mean of its divisors is an integer number (2706227712).

Almost surely, 2^71542400730 is an apocalyptic number.

71542400730 is an abundant number, since it is smaller than the sum of its proper divisors (101656172838).

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

71542400730 is a wasteful number, since it uses less digits than its factorization.

71542400730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15851.

The product of its (nonzero) digits is 23520, while the sum is 33.

The spelling of 71542400730 in words is "seventy-one billion, five hundred forty-two million, four hundred thousand, seven hundred thirty".