212425813677 has 144 divisors (see below), whose sum is σ = 377130356736. Its totient is φ = 104093035200.

The previous prime is 212425813667. The next prime is 212425813681. The reversal of 212425813677 is 776318524212.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-212425813677 is a prime.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212425813637) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 336649152 + ... + 336649782.

Almost surely, 2^212425813677 is an apocalyptic number.

It is an amenable number.

212425813677 is a deficient number, since it is larger than the sum of its proper divisors (164704543059).

212425813677 is a wasteful number, since it uses less digits than its factorization.

212425813677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068 (or 1038 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The spelling of 212425813677 in words is "two hundred twelve billion, four hundred twenty-five million, eight hundred thirteen thousand, six hundred seventy-seven".