481972239461 has 2 divisors, whose sum is σ = 481972239462. Its totient is φ = 481972239460.

The previous prime is 481972239443. The next prime is 481972239499. The reversal of 481972239461 is 164932279184.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 321255438436 + 160716801025 = 566794^2 + 400895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481972239461 is a prime.

It is a super-2 number, since 2×481972239461² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 481972239397 and 481972239406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (481972239761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240986119730 + 240986119731.

It is an arithmetic number, because the mean of its divisors is an integer number (240986119731).

Almost surely, 2^481972239461 is an apocalyptic number.

It is an amenable number.

481972239461 is a deficient number, since it is larger than the sum of its proper divisors (1).

481972239461 is an equidigital number, since it uses as much as digits as its factorization.

481972239461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 56.

The spelling of 481972239461 in words is "four hundred eighty-one billion, nine hundred seventy-two million, two hundred thirty-nine thousand, four hundred sixty-one".