43305640644380 has 72 divisors (see below), whose sum is σ = 100806306396768. Its totient is φ = 15594460828672.

The previous prime is 43305640644367. The next prime is 43305640644391. The reversal of 43305640644380 is 8344604650334.

It is a super-3 number, since 3×43305640644380³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162743699 + ... + 163009578.

It is an arithmetic number, because the mean of its divisors is an integer number (1400087588844).

Almost surely, 2^{43305640644380} is an apocalyptic number.

It is an amenable number.

43305640644380 is an abundant number, since it is smaller than the sum of its proper divisors (57500665752388).

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

43305640644380 is a wasteful number, since it uses less digits than its factorization.

43305640644380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325753343 (or 325753324 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 50.

The spelling of 43305640644380 in words is "forty-three trillion, three hundred five billion, six hundred forty million, six hundred forty-four thousand, three hundred eighty".