213410978840 has 32 divisors (see below), whose sum is σ = 482450430960. Its totient is φ = 84959817600.

The previous prime is 213410978797. The next prime is 213410978843. The reversal of 213410978840 is 48879014312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213410978843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12634391 + ... + 12651270.

Almost surely, 2^213410978840 is an apocalyptic number.

213410978840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213410978840 is an abundant number, since it is smaller than the sum of its proper divisors (269039452120).

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

213410978840 is a wasteful number, since it uses less digits than its factorization.

213410978840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25285883 (or 25285879 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 213410978840 in words is "two hundred thirteen billion, four hundred ten million, nine hundred seventy-eight thousand, eight hundred forty".