1394907494825 has 24 divisors (see below), whose sum is σ = 1862941311000. Its totient is φ = 1029973109760.

The previous prime is 1394907494809. The next prime is 1394907494839. The reversal of 1394907494825 is 5284947094931.

It can be written as a sum of positive squares in 12 ways, for example, as 390791267689 + 1004116227136 = 625133^2 + 1002056^2 .

It is not a de Polignac number, because 1394907494825 - 2⁴ = 1394907494809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2808881 + ... + 3267969.

It is an arithmetic number, because the mean of its divisors is an integer number (77622554625).

Almost surely, 2^{1394907494825} is an apocalyptic number.

It is an amenable number.

1394907494825 is a deficient number, since it is larger than the sum of its proper divisors (468033816175).

1394907494825 is a wasteful number, since it uses less digits than its factorization.

1394907494825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468461 (or 468456 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 65.

The spelling of 1394907494825 in words is "one trillion, three hundred ninety-four billion, nine hundred seven million, four hundred ninety-four thousand, eight hundred twenty-five".