43097547949 has 4 divisors (see below), whose sum is σ = 43195720480. Its totient is φ = 42999375420.

The previous prime is 43097547931. The next prime is 43097547967. The reversal of 43097547949 is 94974579034.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (43097547931) and next prime (43097547967).

It is a cyclic number.

It is not a de Polignac number, because 43097547949 - 2³⁵ = 8737809581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43097547989) 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, 49085607 + ... + 49086484.

It is an arithmetic number, because the mean of its divisors is an integer number (10798930120).

Almost surely, 2^43097547949 is an apocalyptic number.

It is an amenable number.

43097547949 is a deficient number, since it is larger than the sum of its proper divisors (98172531).

43097547949 is an equidigital number, since it uses as much as digits as its factorization.

43097547949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98172530.

The product of its (nonzero) digits is 34292160, while the sum is 61.

The spelling of 43097547949 in words is "forty-three billion, ninety-seven million, five hundred forty-seven thousand, nine hundred forty-nine".