402142443125 has 40 divisors (see below), whose sum is σ = 518959879680. Its totient is φ = 311196600000.

The previous prime is 402142443107. The next prime is 402142443137. The reversal of 402142443125 is 521344241204.

It is not a de Polignac number, because 402142443125 - 2²² = 402138248821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402142443091 and 402142443100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 72052835 + ... + 72058415.

It is an arithmetic number, because the mean of its divisors is an integer number (12973996992).

Almost surely, 2^402142443125 is an apocalyptic number.

It is an amenable number.

402142443125 is a deficient number, since it is larger than the sum of its proper divisors (116817436555).

402142443125 is an equidigital number, since it uses as much as digits as its factorization.

402142443125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9351 (or 9336 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 402142443125 its reverse (521344241204), we get a palindrome (923486684329).

The spelling of 402142443125 in words is "four hundred two billion, one hundred forty-two million, four hundred forty-three thousand, one hundred twenty-five".