690421451759 has 8 divisors (see below), whose sum is σ = 746158115472. Its totient is φ = 635060119680.

The previous prime is 690421451659. The next prime is 690421451771. The reversal of 690421451759 is 957154124096.

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

It is a cyclic number.

It is not a de Polignac number, because 690421451759 - 2¹² = 690421447663 is a prime.

It is a super-3 number, since 3×690421451759³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 690421451759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690421451659) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 93829082 + ... + 93836439.

It is an arithmetic number, because the mean of its divisors is an integer number (93269764434).

Almost surely, 2^690421451759 is an apocalyptic number.

690421451759 is a deficient number, since it is larger than the sum of its proper divisors (55736663713).

690421451759 is a wasteful number, since it uses less digits than its factorization.

690421451759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187665817.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 690421451759 in words is "six hundred ninety billion, four hundred twenty-one million, four hundred fifty-one thousand, seven hundred fifty-nine".