623427101461 has 2 divisors, whose sum is σ = 623427101462. Its totient is φ = 623427101460.

The previous prime is 623427101443. The next prime is 623427101489. The reversal of 623427101461 is 164101724326.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403390116900 + 220036984561 = 635130^2 + 469081^2 .

It is a cyclic number.

It is not a de Polignac number, because 623427101461 - 2²³ = 623418712853 is a prime.

It is a super-2 number, since 2×623427101461² (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 623427101461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623427101161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311713550730 + 311713550731.

It is an arithmetic number, because the mean of its divisors is an integer number (311713550731).

Almost surely, 2^623427101461 is an apocalyptic number.

It is an amenable number.

623427101461 is a deficient number, since it is larger than the sum of its proper divisors (1).

623427101461 is an equidigital number, since it uses as much as digits as its factorization.

623427101461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

Adding to 623427101461 its reverse (164101724326), we get a palindrome (787528825787).

The spelling of 623427101461 in words is "six hundred twenty-three billion, four hundred twenty-seven million, one hundred one thousand, four hundred sixty-one".