1257879395053 has 8 divisors (see below), whose sum is σ = 1324144783520. Its totient is φ = 1191620127600.

The previous prime is 1257879395027. The next prime is 1257879395077. The reversal of 1257879395053 is 3505939787521.

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 1257879395053 - 2⁵ = 1257879395021 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 (1257879393053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1105398 + ... + 1933303.

It is an arithmetic number, because the mean of its divisors is an integer number (165518097940).

Almost surely, 2^{1257879395053} is an apocalyptic number.

It is an amenable number.

1257879395053 is a deficient number, since it is larger than the sum of its proper divisors (66265388467).

1257879395053 is a wasteful number, since it uses less digits than its factorization.

1257879395053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060507.

The product of its (nonzero) digits is 71442000, while the sum is 64.

The spelling of 1257879395053 in words is "one trillion, two hundred fifty-seven billion, eight hundred seventy-nine million, three hundred ninety-five thousand, fifty-three".