46777207621 has 4 divisors (see below), whose sum is σ = 46779320044. Its totient is φ = 46775095200.

The previous prime is 46777207579. The next prime is 46777207657. The reversal of 46777207621 is 12670277764.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27507881025 + 19269326596 = 165855^2 + 138814^2 .

It is a cyclic number.

It is not a de Polignac number, because 46777207621 - 2⁷ = 46777207493 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 (46777207661) 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, 1022640 + ... + 1067401.

It is an arithmetic number, because the mean of its divisors is an integer number (11694830011).

Almost surely, 2^46777207621 is an apocalyptic number.

It is an amenable number.

46777207621 is a deficient number, since it is larger than the sum of its proper divisors (2112423).

46777207621 is a wasteful number, since it uses less digits than its factorization.

46777207621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112422.

The product of its (nonzero) digits is 1382976, while the sum is 49.

The spelling of 46777207621 in words is "forty-six billion, seven hundred seventy-seven million, two hundred seven thousand, six hundred twenty-one".