17897401940 has 24 divisors (see below), whose sum is σ = 41001321312. Its totient is φ = 6508146080.

The previous prime is 17897401927. The next prime is 17897401969. The reversal of 17897401940 is 4910479871.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40675694 + ... + 40676133.

It is an arithmetic number, because the mean of its divisors is an integer number (1708388388).

Almost surely, 2^17897401940 is an apocalyptic number.

17897401940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17897401940 is an abundant number, since it is smaller than the sum of its proper divisors (23103919372).

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

17897401940 is a wasteful number, since it uses less digits than its factorization.

17897401940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81351847 (or 81351845 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 50.

The spelling of 17897401940 in words is "seventeen billion, eight hundred ninety-seven million, four hundred one thousand, nine hundred forty".