19374654012 has 48 divisors (see below), whose sum is σ = 51800727552. Its totient is φ = 5521152960.

The previous prime is 19374654001. The next prime is 19374654043. The reversal of 19374654012 is 21045647391.

It is a super-2 number, since 2×19374654012² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 268939 + ... + 333282.

It is an arithmetic number, because the mean of its divisors is an integer number (1079181824).

Almost surely, 2^19374654012 is an apocalyptic number.

19374654012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19374654012 is an abundant number, since it is smaller than the sum of its proper divisors (32426073540).

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

19374654012 is a wasteful number, since it uses less digits than its factorization.

19374654012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602618 (or 602616 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 19374654012 in words is "nineteen billion, three hundred seventy-four million, six hundred fifty-four thousand, twelve".