42681499722 has 16 divisors (see below), whose sum is σ = 94847777280. Its totient is φ = 14227166556.

The previous prime is 42681499709. The next prime is 42681499733. The reversal of 42681499722 is 22799418624.

It is a happy number.

42681499722 is a `hidden beast` number, since 4 + 2 + 6 + 81 + 499 + 72 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 790398143 = 42681499722 / (4 + 2 + 6 + 8 + 1 + 4 + 9 + 9 + 7 + 2 + 2).

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, 395199018 + ... + 395199125.

It is an arithmetic number, because the mean of its divisors is an integer number (5927986080).

Almost surely, 2^42681499722 is an apocalyptic number.

42681499722 is an abundant number, since it is smaller than the sum of its proper divisors (52166277558).

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

42681499722 is a wasteful number, since it uses less digits than its factorization.

42681499722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790398154 (or 790398148 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 42681499722 in words is "forty-two billion, six hundred eighty-one million, four hundred ninety-nine thousand, seven hundred twenty-two".