18620379758 has 16 divisors (see below), whose sum is σ = 28324963680. Its totient is φ = 9179515296.

The previous prime is 18620379751. The next prime is 18620379781. The reversal of 18620379758 is 85797302681.

It is a super-2 number, since 2×18620379758² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18620379751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150185 + ... + 244532.

It is an arithmetic number, because the mean of its divisors is an integer number (1770310230).

Almost surely, 2^18620379758 is an apocalyptic number.

18620379758 is a deficient number, since it is larger than the sum of its proper divisors (9704583922).

18620379758 is a wasteful number, since it uses less digits than its factorization.

18620379758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395051.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 18620379758 in words is "eighteen billion, six hundred twenty million, three hundred seventy-nine thousand, seven hundred fifty-eight".