18617061030490 has 64 divisors (see below), whose sum is σ = 36598725580032. Its totient is φ = 6776808192000.

The previous prime is 18617061030481. The next prime is 18617061030497. The reversal of 18617061030490 is 9403016071681.

It is a super-2 number, since 2×18617061030490² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18617061030490.

It is not an unprimeable number, because it can be changed into a prime (18617061030497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217443690 + ... + 217529290.

It is an arithmetic number, because the mean of its divisors is an integer number (571855087188).

Almost surely, 2^{18617061030490} is an apocalyptic number.

18617061030490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18617061030490 is a deficient number, since it is larger than the sum of its proper divisors (17981664549542).

18617061030490 is a wasteful number, since it uses less digits than its factorization.

18617061030490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109255.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 18617061030490 in words is "eighteen trillion, six hundred seventeen billion, sixty-one million, thirty thousand, four hundred ninety".