43648562731380 has 48 divisors (see below), whose sum is σ = 122723095919424. Its totient is φ = 11591319559680.

The previous prime is 43648562731303. The next prime is 43648562731399. The reversal of 43648562731380 is 8313726584634.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1509271942 + ... + 1509300861.

It is an arithmetic number, because the mean of its divisors is an integer number (2556731164988).

Almost surely, 2^{43648562731380} is an apocalyptic number.

It is an amenable number.

43648562731380 is an abundant number, since it is smaller than the sum of its proper divisors (79074533188044).

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

43648562731380 is a wasteful number, since it uses less digits than its factorization.

43648562731380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3018573056 (or 3018573054 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 60.

The spelling of 43648562731380 in words is "forty-three trillion, six hundred forty-eight billion, five hundred sixty-two million, seven hundred thirty-one thousand, three hundred eighty".