781470104142 has 64 divisors (see below), whose sum is σ = 1923871864320. Its totient is φ = 206074882944.

The previous prime is 781470104131. The next prime is 781470104161. The reversal of 781470104142 is 241401074187.

It is a super-2 number, since 2×781470104142² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 781470104142.

It is a congruent number.

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, 4241209 + ... + 4421627.

It is an arithmetic number, because the mean of its divisors is an integer number (30060497880).

Almost surely, 2^781470104142 is an apocalyptic number.

781470104142 is an abundant number, since it is smaller than the sum of its proper divisors (1142401760178).

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

781470104142 is a wasteful number, since it uses less digits than its factorization.

781470104142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188377.

The product of its (nonzero) digits is 50176, while the sum is 39.

The spelling of 781470104142 in words is "seven hundred eighty-one billion, four hundred seventy million, one hundred four thousand, one hundred forty-two".