43730877605420 has 24 divisors (see below), whose sum is σ = 91837715858448. Its totient is φ = 17491803825600.

The previous prime is 43730877605419. The next prime is 43730877605423. The reversal of 43730877605420 is 2450677803734.

It is a happy number.

It is a super-2 number, since 2×43730877605420² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43730877605423) 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, 33545426 + ... + 34824665.

It is an arithmetic number, because the mean of its divisors is an integer number (3826571494102).

Almost surely, 2^{43730877605420} is an apocalyptic number.

It is an amenable number.

43730877605420 is an abundant number, since it is smaller than the sum of its proper divisors (48106838253028).

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

43730877605420 is a wasteful number, since it uses less digits than its factorization.

43730877605420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68402081 (or 68402079 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 56.

The spelling of 43730877605420 in words is "forty-three trillion, seven hundred thirty billion, eight hundred seventy-seven million, six hundred five thousand, four hundred twenty".