46640654551 has 4 divisors (see below), whose sum is σ = 47202590232. Its totient is φ = 46078718872.

The previous prime is 46640654549. The next prime is 46640654563. The reversal of 46640654551 is 15545604664.

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 46640654551 - 2¹ = 46640654549 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 (46640654531) 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, 280967716 + ... + 280967881.

It is an arithmetic number, because the mean of its divisors is an integer number (11800647558).

Almost surely, 2^46640654551 is an apocalyptic number.

46640654551 is a deficient number, since it is larger than the sum of its proper divisors (561935681).

46640654551 is an equidigital number, since it uses as much as digits as its factorization.

46640654551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561935680.

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 46640654551 in words is "forty-six billion, six hundred forty million, six hundred fifty-four thousand, five hundred fifty-one".