1351747725625 has 40 divisors (see below), whose sum is σ = 1854440938944. Its totient is φ = 976826760000.

The previous prime is 1351747725607. The next prime is 1351747725637. The reversal of 1351747725625 is 5265277471531.

It is a happy number.

It is not a de Polignac number, because 1351747725625 - 2¹⁵ = 1351747692857 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 453204 + ... + 1705546.

Almost surely, 2^{1351747725625} is an apocalyptic number.

It is an amenable number.

1351747725625 is a deficient number, since it is larger than the sum of its proper divisors (502693213319).

1351747725625 is a wasteful number, since it uses less digits than its factorization.

1351747725625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252531 (or 1252516 counting only the distinct ones).

The product of its digits is 12348000, while the sum is 55.

The spelling of 1351747725625 in words is "one trillion, three hundred fifty-one billion, seven hundred forty-seven million, seven hundred twenty-five thousand, six hundred twenty-five".