85418685780 has 48 divisors (see below), whose sum is σ = 245005798464. Its totient is φ = 22222746880.

The previous prime is 85418685761. The next prime is 85418685799. The reversal of 85418685780 is 8758681458.

It is an interprime number because it is at equal distance from previous prime (85418685761) and next prime (85418685799).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17359062 + ... + 17363981.

It is an arithmetic number, because the mean of its divisors is an integer number (5104287468).

Almost surely, 2^85418685780 is an apocalyptic number.

It is an amenable number.

85418685780 is an abundant number, since it is smaller than the sum of its proper divisors (159587112684).

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

85418685780 is a wasteful number, since it uses less digits than its factorization.

85418685780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34723096 (or 34723094 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 60.

The spelling of 85418685780 in words is "eighty-five billion, four hundred eighteen million, six hundred eighty-five thousand, seven hundred eighty".