1974869518064 has 10 divisors (see below), whose sum is σ = 3826309691280. Its totient is φ = 987434759024.

The previous prime is 1974869518021. The next prime is 1974869518073. The reversal of 1974869518064 is 4608159684791.

It is a super-2 number, since 2×1974869518064² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1974869517985 and 1974869518003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61714672424 + ... + 61714672455.

It is an arithmetic number, because the mean of its divisors is an integer number (382630969128).

Almost surely, 2^{1974869518064} is an apocalyptic number.

It is an amenable number.

1974869518064 is a deficient number, since it is larger than the sum of its proper divisors (1851440173216).

1974869518064 is a wasteful number, since it uses less digits than its factorization.

1974869518064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123429344887 (or 123429344881 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 68.

The spelling of 1974869518064 in words is "one trillion, nine hundred seventy-four billion, eight hundred sixty-nine million, five hundred eighteen thousand, sixty-four".