43097428779 has 4 divisors (see below), whose sum is σ = 57463238376. Its totient is φ = 28731619184.

The previous prime is 43097428763. The next prime is 43097428799. The reversal of 43097428779 is 97782479034.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43097428779 - 2⁴ = 43097428763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43097428709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7182904794 + ... + 7182904799.

It is an arithmetic number, because the mean of its divisors is an integer number (14365809594).

Almost surely, 2^43097428779 is an apocalyptic number.

43097428779 is a deficient number, since it is larger than the sum of its proper divisors (14365809597).

43097428779 is a wasteful number, since it uses less digits than its factorization.

43097428779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14365809596.

The product of its (nonzero) digits is 21337344, while the sum is 60.

The spelling of 43097428779 in words is "forty-three billion, ninety-seven million, four hundred twenty-eight thousand, seven hundred seventy-nine".