464634665061551 has 4 divisors (see below), whose sum is σ = 464649978847704. Its totient is φ = 464619351275400.

The previous prime is 464634665061493. The next prime is 464634665061557. The reversal of 464634665061551 is 155160566436464.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 464634665061551 - 2⁴² = 460236618550447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464634665061557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7656847565 + ... + 7656908246.

It is an arithmetic number, because the mean of its divisors is an integer number (116162494711926).

Almost surely, 2^{464634665061551} is an apocalyptic number.

464634665061551 is a deficient number, since it is larger than the sum of its proper divisors (15313786153).

464634665061551 is a wasteful number, since it uses less digits than its factorization.

464634665061551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15313786152.

The product of its (nonzero) digits is 186624000, while the sum is 62.

The spelling of 464634665061551 in words is "four hundred sixty-four trillion, six hundred thirty-four billion, six hundred sixty-five million, sixty-one thousand, five hundred fifty-one".