43672978690 has 16 divisors (see below), whose sum is σ = 85757849280. Its totient is φ = 15881083120.

The previous prime is 43672978673. The next prime is 43672978697. The reversal of 43672978690 is 9687927634.

It is a super-2 number, since 2×43672978690² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43672978697) 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, 198513430 + ... + 198513649.

It is an arithmetic number, because the mean of its divisors is an integer number (5359865580).

Almost surely, 2^43672978690 is an apocalyptic number.

43672978690 is a deficient number, since it is larger than the sum of its proper divisors (42084870590).

43672978690 is a wasteful number, since it uses less digits than its factorization.

43672978690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397027097.

The product of its (nonzero) digits is 27433728, while the sum is 61.

The spelling of 43672978690 in words is "forty-three billion, six hundred seventy-two million, nine hundred seventy-eight thousand, six hundred ninety".