18492620340 has 48 divisors (see below), whose sum is σ = 53449643520. Its totient is φ = 4772288640.

The previous prime is 18492620299. The next prime is 18492620369. The reversal of 18492620340 is 4302629481.

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, 4969275 + ... + 4972994.

It is an arithmetic number, because the mean of its divisors is an integer number (1113534240).

Almost surely, 2^18492620340 is an apocalyptic number.

18492620340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18492620340 is an abundant number, since it is smaller than the sum of its proper divisors (34957023180).

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

18492620340 is a wasteful number, since it uses less digits than its factorization.

18492620340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9942312 (or 9942310 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 18492620340 in words is "eighteen billion, four hundred ninety-two million, six hundred twenty thousand, three hundred forty".