18462149664 has 96 divisors (see below), whose sum is σ = 55445677056. Its totient is φ = 5269259520.

The previous prime is 18462149599. The next prime is 18462149677. The reversal of 18462149664 is 46694126481.

It is a tau number, because it is divible by the number of its divisors (96).

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, 635619 + ... + 664029.

It is an arithmetic number, because the mean of its divisors is an integer number (577559136).

Almost surely, 2^18462149664 is an apocalyptic number.

18462149664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18462149664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27722838528).

18462149664 is an abundant number, since it is smaller than the sum of its proper divisors (36983527392).

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

18462149664 is a wasteful number, since it uses less digits than its factorization.

18462149664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29398 (or 29390 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The spelling of 18462149664 in words is "eighteen billion, four hundred sixty-two million, one hundred forty-nine thousand, six hundred sixty-four".