742297780782 has 12 divisors (see below), whose sum is σ = 1608311858400. Its totient is φ = 247432593588.

The previous prime is 742297780687. The next prime is 742297780801. The reversal of 742297780782 is 287087792247.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20619382782 + ... + 20619382817.

It is an arithmetic number, because the mean of its divisors is an integer number (134025988200).

Almost surely, 2^742297780782 is an apocalyptic number.

742297780782 is an abundant number, since it is smaller than the sum of its proper divisors (866014077618).

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

742297780782 is a wasteful number, since it uses less digits than its factorization.

742297780782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41238765607 (or 41238765604 counting only the distinct ones).

The product of its (nonzero) digits is 44255232, while the sum is 63.

The spelling of 742297780782 in words is "seven hundred forty-two billion, two hundred ninety-seven million, seven hundred eighty thousand, seven hundred eighty-two".