425177781601 has 8 divisors (see below), whose sum is σ = 448161197600. Its totient is φ = 402254929440.

The previous prime is 425177781599. The next prime is 425177781617. The reversal of 425177781601 is 106187771524.

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 425177781601 - 2¹ = 425177781599 is a prime.

It is a super-2 number, since 2×425177781601² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425177781901) 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, 15126540 + ... + 15154621.

It is an arithmetic number, because the mean of its divisors is an integer number (56020149700).

Almost surely, 2^425177781601 is an apocalyptic number.

It is an amenable number.

425177781601 is a deficient number, since it is larger than the sum of its proper divisors (22983415999).

425177781601 is a wasteful number, since it uses less digits than its factorization.

425177781601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30281919.

The product of its (nonzero) digits is 658560, while the sum is 49.

The spelling of 425177781601 in words is "four hundred twenty-five billion, one hundred seventy-seven million, seven hundred eighty-one thousand, six hundred one".