1925134453861 has 8 divisors (see below), whose sum is σ = 1927164513240. Its totient is φ = 1923105311232.

The previous prime is 1925134453727. The next prime is 1925134453877. The reversal of 1925134453861 is 1683544315291.

It can be written as a sum of positive squares in 4 ways, for example, as 754172401761 + 1170962052100 = 868431^2 + 1082110^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1925134453861 - 2¹⁷ = 1925134322789 is a prime.

It is a super-2 number, since 2×1925134453861² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1925134453799 and 1925134453808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1925134453061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4014241 + ... + 4468153.

It is an arithmetic number, because the mean of its divisors is an integer number (240895564155).

Almost surely, 2^{1925134453861} is an apocalyptic number.

It is an amenable number.

1925134453861 is a deficient number, since it is larger than the sum of its proper divisors (2030059379).

1925134453861 is a wasteful number, since it uses less digits than its factorization.

1925134453861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458375.

The product of its digits is 3110400, while the sum is 52.

The spelling of 1925134453861 in words is "one trillion, nine hundred twenty-five billion, one hundred thirty-four million, four hundred fifty-three thousand, eight hundred sixty-one".