6690452651738 has 8 divisors (see below), whose sum is σ = 10035737330400. Its totient is φ = 3345206874940.

The previous prime is 6690452651731. The next prime is 6690452651741. The reversal of 6690452651738 is 8371562540966.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6690452651731) 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, 9291638 + ... + 9985761.

It is an arithmetic number, because the mean of its divisors is an integer number (1254467166300).

It is a 1-persistent number, because it is pandigital, but 2⋅6690452651738 = 13380905303476 is not.

Almost surely, 2^{6690452651738} is an apocalyptic number.

6690452651738 is a deficient number, since it is larger than the sum of its proper divisors (3345284678662).

6690452651738 is a wasteful number, since it uses less digits than its factorization.

6690452651738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19450932.

The product of its (nonzero) digits is 65318400, while the sum is 62.

The spelling of 6690452651738 in words is "six trillion, six hundred ninety billion, four hundred fifty-two million, six hundred fifty-one thousand, seven hundred thirty-eight".