71224731078 has 16 divisors (see below), whose sum is σ = 142452304896. Its totient is φ = 23741103240.

The previous prime is 71224730957. The next prime is 71224731107. The reversal of 71224731078 is 87013742217.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349443 + ... + 514353.

It is an arithmetic number, because the mean of its divisors is an integer number (8903269056).

Almost surely, 2^71224731078 is an apocalyptic number.

71224731078 is an abundant number, since it is smaller than the sum of its proper divisors (71227573818).

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

71224731078 is a wasteful number, since it uses less digits than its factorization.

71224731078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236899.

The product of its (nonzero) digits is 131712, while the sum is 42.

The spelling of 71224731078 in words is "seventy-one billion, two hundred twenty-four million, seven hundred thirty-one thousand, seventy-eight".