71335356990 has 32 divisors (see below), whose sum is σ = 181275732000. Its totient is φ = 17903775744.

The previous prime is 71335356919. The next prime is 71335356997. The reversal of 71335356990 is 9965353317.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71335356997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69936115 + ... + 69937134.

It is an arithmetic number, because the mean of its divisors is an integer number (5664866625).

Almost surely, 2^71335356990 is an apocalyptic number.

71335356990 is an abundant number, since it is smaller than the sum of its proper divisors (109940375010).

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

71335356990 is a wasteful number, since it uses less digits than its factorization.

71335356990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139873276.

The product of its (nonzero) digits is 2296350, while the sum is 51.

The spelling of 71335356990 in words is "seventy-one billion, three hundred thirty-five million, three hundred fifty-six thousand, nine hundred ninety".