425833273766640 has 80 divisors (see below), whose sum is σ = 1397735098612128. Its totient is φ = 106875802042368.

The previous prime is 425833273766633. The next prime is 425833273766653. The reversal of 425833273766640 is 46667372338524.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52185446137 + ... + 52185454296.

Almost surely, 2^{425833273766640} is an apocalyptic number.

425833273766640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425833273766640 is an abundant number, since it is smaller than the sum of its proper divisors (971901824845488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425833273766640 is a wasteful number, since it uses less digits than its factorization.

425833273766640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104370900466 (or 104370900460 counting only the distinct ones).

The product of its (nonzero) digits is 731566080, while the sum is 66.

The spelling of 425833273766640 in words is "four hundred twenty-five trillion, eight hundred thirty-three billion, two hundred seventy-three million, seven hundred sixty-six thousand, six hundred forty".