1994292519280 has 40 divisors (see below), whose sum is σ = 4636795851072. Its totient is φ = 797705697024.

The previous prime is 1994292519239. The next prime is 1994292519299. The reversal of 1994292519280 is 829152924991.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7658094 + ... + 7914226.

Almost surely, 2^{1994292519280} is an apocalyptic number.

1994292519280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1994292519280 is an abundant number, since it is smaller than the sum of its proper divisors (2642503331792).

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

1994292519280 is a wasteful number, since it uses less digits than its factorization.

1994292519280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353473 (or 353467 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 61.

The spelling of 1994292519280 in words is "one trillion, nine hundred ninety-four billion, two hundred ninety-two million, five hundred nineteen thousand, two hundred eighty".