1613507425677 has 72 divisors (see below), whose sum is σ = 2732331240600. Its totient is φ = 914811625728.

The previous prime is 1613507425603. The next prime is 1613507425693. The reversal of 1613507425677 is 7765247053161.

1613507425677 is a `hidden beast` number, since 1 + 6 + 1 + 3 + 5 + 0 + 74 + 2 + 567 + 7 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 22412784681 + 1591094640996 = 149709^2 + 1261386^2 .

It is not a de Polignac number, because 1613507425677 - 2⁸ = 1613507425421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613507425477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 49072599 + ... + 49105467.

Almost surely, 2^{1613507425677} is an apocalyptic number.

It is an amenable number.

1613507425677 is a deficient number, since it is larger than the sum of its proper divisors (1118823814923).

1613507425677 is a wasteful number, since it uses less digits than its factorization.

1613507425677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33755 (or 33745 counting only the distinct ones).

The product of its (nonzero) digits is 7408800, while the sum is 54.

It can be divided in two parts, 1613507 and 425677, that added together give a square (2039184 = 1428²).

The spelling of 1613507425677 in words is "one trillion, six hundred thirteen billion, five hundred seven million, four hundred twenty-five thousand, six hundred seventy-seven".