612454488417653 has 12 divisors (see below), whose sum is σ = 712450017962892. Its totient is φ = 524958809014080.

The previous prime is 612454488417643. The next prime is 612454488417659. The reversal of 612454488417653 is 356714884454216.

It can be written as a sum of positive squares in 2 ways, for example, as 195544369103524 + 416910119314129 = 13983718^2 + 20418377^2 .

It is not a de Polignac number, because 612454488417653 - 2⁶ = 612454488417589 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 (612454488417659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13995038 + ... + 37693103.

It is an arithmetic number, because the mean of its divisors is an integer number (59370834830241).

Almost surely, 2^{612454488417653} is an apocalyptic number.

It is an amenable number.

612454488417653 is a deficient number, since it is larger than the sum of its proper divisors (99995529545239).

612454488417653 is a wasteful number, since it uses less digits than its factorization.

612454488417653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51929972 (or 51929965 counting only the distinct ones).

The product of its digits is 619315200, while the sum is 68.

The spelling of 612454488417653 in words is "six hundred twelve trillion, four hundred fifty-four billion, four hundred eighty-eight million, four hundred seventeen thousand, six hundred fifty-three".