397586780000 has 240 divisors, whose sum is σ = 1062847779840. Its totient is φ = 145800000000.

The previous prime is 397586779991. The next prime is 397586780011. The reversal of 397586780000 is 87685793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11763125 + ... + 11796875.

It is an arithmetic number, because the mean of its divisors is an integer number (4428532416).

Almost surely, 2^397586780000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397586780000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531423889920).

397586780000 is an abundant number, since it is smaller than the sum of its proper divisors (665260999840).

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

397586780000 is a wasteful number, since it uses less digits than its factorization.

397586780000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33831 (or 33808 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 397586780000 in words is "three hundred ninety-seven billion, five hundred eighty-six million, seven hundred eighty thousand".