4661216431 has 4 divisors (see below), whose sum is σ = 4663296792. Its totient is φ = 4659136072.

The previous prime is 4661216423. The next prime is 4661216447. The reversal of 4661216431 is 1346121664.

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 4661216431 - 2³ = 4661216423 is a prime.

It is a super-2 number, since 2×4661216431² = 43453877233248755522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4661211431) 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, 1036816 + ... + 1041301.

It is an arithmetic number, because the mean of its divisors is an integer number (1165824198).

Almost surely, 2^4661216431 is an apocalyptic number.

4661216431 is a deficient number, since it is larger than the sum of its proper divisors (2080361).

4661216431 is a wasteful number, since it uses less digits than its factorization.

4661216431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080360.

The product of its digits is 20736, while the sum is 34.

The square root of 4661216431 is about 68273.1018117677. The cubic root of 4661216431 is about 1670.4484950051.

The spelling of 4661216431 in words is "four billion, six hundred sixty-one million, two hundred sixteen thousand, four hundred thirty-one".