6455497731 has 8 divisors (see below), whose sum is σ = 8696066064. Its totient is φ = 4259297280.

The previous prime is 6455497721. The next prime is 6455497747. The reversal of 6455497731 is 1377945546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6455497731 - 2⁶ = 6455497667 is a prime.

It is a super-2 number, since 2×6455497731² = 83346901909892296722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6455497721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11091630 + ... + 11092211.

It is an arithmetic number, because the mean of its divisors is an integer number (1087008258).

Almost surely, 2^6455497731 is an apocalyptic number.

6455497731 is a deficient number, since it is larger than the sum of its proper divisors (2240568333).

6455497731 is a wasteful number, since it uses less digits than its factorization.

6455497731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22183941.

The product of its digits is 3175200, while the sum is 51.

The square root of 6455497731 is about 80346.1121088009. The cubic root of 6455497731 is about 1861.9867131783.

The spelling of 6455497731 in words is "six billion, four hundred fifty-five million, four hundred ninety-seven thousand, seven hundred thirty-one".