6456998742 has 32 divisors (see below), whose sum is σ = 13335373824. Its totient is φ = 2082153600.

The previous prime is 6456998699. The next prime is 6456998767. The reversal of 6456998742 is 2478996546.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772767 + ... + 781077.

It is an arithmetic number, because the mean of its divisors is an integer number (416730432).

Almost surely, 2^6456998742 is an apocalyptic number.

6456998742 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

6456998742 is an abundant number, since it is smaller than the sum of its proper divisors (6878375082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6456998742 is a wasteful number, since it uses less digits than its factorization.

6456998742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12524.

The product of its digits is 26127360, while the sum is 60.

The square root of 6456998742 is about 80355.4524721254. The cubic root of 6456998742 is about 1862.1310163271.

The spelling of 6456998742 in words is "six billion, four hundred fifty-six million, nine hundred ninety-eight thousand, seven hundred forty-two".