461261354781 has 16 divisors (see below), whose sum is σ = 622785106944. Its totient is φ = 303641310384.

The previous prime is 461261354779. The next prime is 461261354789. The reversal of 461261354781 is 187453162164.

It is not a de Polignac number, because 461261354781 - 2¹ = 461261354779 is a prime.

It is a super-2 number, since 2×461261354781² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 461261354781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461261354789) 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, 2241765 + ... + 2438858.

It is an arithmetic number, because the mean of its divisors is an integer number (38924069184).

Almost surely, 2^461261354781 is an apocalyptic number.

It is an amenable number.

461261354781 is a deficient number, since it is larger than the sum of its proper divisors (161523752163).

461261354781 is a wasteful number, since it uses less digits than its factorization.

461261354781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4681040.

The product of its digits is 967680, while the sum is 48.

The spelling of 461261354781 in words is "four hundred sixty-one billion, two hundred sixty-one million, three hundred fifty-four thousand, seven hundred eighty-one".