43155706913 has 16 divisors (see below), whose sum is σ = 49082780736. Its totient is φ = 37597035840.

The previous prime is 43155706903. The next prime is 43155706939. The reversal of 43155706913 is 31960755134.

It is a cyclic number.

It is not a de Polignac number, because 43155706913 - 2¹⁰ = 43155705889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43155706903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835670 + ... + 885807.

It is an arithmetic number, because the mean of its divisors is an integer number (3067673796).

Almost surely, 2^43155706913 is an apocalyptic number.

43155706913 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

43155706913 is a deficient number, since it is larger than the sum of its proper divisors (5927073823).

43155706913 is a wasteful number, since it uses less digits than its factorization.

43155706913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721584.

The product of its (nonzero) digits is 340200, while the sum is 44.

The spelling of 43155706913 in words is "forty-three billion, one hundred fifty-five million, seven hundred six thousand, nine hundred thirteen".