43103840977 has 2 divisors, whose sum is σ = 43103840978. Its totient is φ = 43103840976.

The previous prime is 43103840959. The next prime is 43103840993. The reversal of 43103840977 is 77904830134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31259654416 + 11844186561 = 176804^2 + 108831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43103840977 is a prime.

It is a super-2 number, since 2×43103840977² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43103840957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21551920488 + 21551920489.

It is an arithmetic number, because the mean of its divisors is an integer number (21551920489).

Almost surely, 2^43103840977 is an apocalyptic number.

It is an amenable number.

43103840977 is a deficient number, since it is larger than the sum of its proper divisors (1).

43103840977 is an equidigital number, since it uses as much as digits as its factorization.

43103840977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 43103840977 in words is "forty-three billion, one hundred three million, eight hundred forty thousand, nine hundred seventy-seven".