4531878697 has 4 divisors (see below), whose sum is σ = 4628301696. Its totient is φ = 4435455700.

The previous prime is 4531878653. The next prime is 4531878713. The reversal of 4531878697 is 7968781354.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4531878697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4531878647) 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, 48211429 + ... + 48211522.

It is an arithmetic number, because the mean of its divisors is an integer number (1157075424).

Almost surely, 2^4531878697 is an apocalyptic number.

4531878697 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

4531878697 is a deficient number, since it is larger than the sum of its proper divisors (96422999).

4531878697 is an equidigital number, since it uses as much as digits as its factorization.

4531878697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96422998.

The product of its digits is 10160640, while the sum is 58.

The square root of 4531878697 is about 67319.2297712919. The cubic root of 4531878697 is about 1654.8530151832.

The spelling of 4531878697 in words is "four billion, five hundred thirty-one million, eight hundred seventy-eight thousand, six hundred ninety-seven".