18629965354 has 64 divisors (see below), whose sum is σ = 37769582592. Its totient is φ = 6655608000.

The previous prime is 18629965351. The next prime is 18629965357. The reversal of 18629965354 is 45356992681.

It is an interprime number because it is at equal distance from previous prime (18629965351) and next prime (18629965357).

It is not an unprimeable number, because it can be changed into a prime (18629965351) 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, 271489 + ... + 333115.

It is an arithmetic number, because the mean of its divisors is an integer number (590149728).

Almost surely, 2^18629965354 is an apocalyptic number.

18629965354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18629965354 is an abundant number, since it is smaller than the sum of its proper divisors (19139617238).

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

18629965354 is a wasteful number, since it uses less digits than its factorization.

18629965354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61811.

The product of its digits is 13996800, while the sum is 58.

The spelling of 18629965354 in words is "eighteen billion, six hundred twenty-nine million, nine hundred sixty-five thousand, three hundred fifty-four".