391380628080 has 160 divisors (see below), whose sum is σ = 1307021970240. Its totient is φ = 96309411840.

The previous prime is 391380628073. The next prime is 391380628087. The reversal of 391380628080 is 80826083193.

It is an interprime number because it is at equal distance from previous prime (391380628073) and next prime (391380628087).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (391380628087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10805200 + ... + 10841360.

It is an arithmetic number, because the mean of its divisors is an integer number (8168887314).

Almost surely, 2^391380628080 is an apocalyptic number.

391380628080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 391380628080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653510985120).

391380628080 is an abundant number, since it is smaller than the sum of its proper divisors (915641342160).

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

391380628080 is a wasteful number, since it uses less digits than its factorization.

391380628080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39659 (or 39653 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 391380628080 in words is "three hundred ninety-one billion, three hundred eighty million, six hundred twenty-eight thousand, eighty".