43502272138 has 16 divisors (see below), whose sum is σ = 70319844000. Its totient is φ = 20064559536.

The previous prime is 43502272129. The next prime is 43502272141. The reversal of 43502272138 is 83127220534.

It is a super-2 number, since 2×43502272138² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43502272097 and 43502272106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519120 + ... + 597067.

It is an arithmetic number, because the mean of its divisors is an integer number (4394990250).

Almost surely, 2^43502272138 is an apocalyptic number.

43502272138 is a deficient number, since it is larger than the sum of its proper divisors (26817571862).

43502272138 is a wasteful number, since it uses less digits than its factorization.

43502272138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117701.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 43502272138 in words is "forty-three billion, five hundred two million, two hundred seventy-two thousand, one hundred thirty-eight".