451264012261 has 16 divisors (see below), whose sum is σ = 477753292800. Its totient is φ = 425542031488.

The previous prime is 451264012237. The next prime is 451264012267. The reversal of 451264012261 is 162210462154.

It is a cyclic number.

It is not a de Polignac number, because 451264012261 - 2²⁵ = 451230457829 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 (451264012267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307281 + ... + 998473.

It is an arithmetic number, because the mean of its divisors is an integer number (29859580800).

Almost surely, 2^451264012261 is an apocalyptic number.

It is an amenable number.

451264012261 is a deficient number, since it is larger than the sum of its proper divisors (26489280539).

451264012261 is a wasteful number, since it uses less digits than its factorization.

451264012261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691748.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 451264012261 in words is "four hundred fifty-one billion, two hundred sixty-four million, twelve thousand, two hundred sixty-one".