10425978840 has 32 divisors (see below), whose sum is σ = 31277936880. Its totient is φ = 2780260992.

The previous prime is 10425978817. The next prime is 10425978859. The reversal of 10425978840 is 4887952401.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 10425978840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43441459 + ... + 43441698.

Almost surely, 2^10425978840 is an apocalyptic number.

10425978840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10425978840 is an abundant number, since it is smaller than the sum of its proper divisors (20851958040).

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

10425978840 is a wasteful number, since it uses less digits than its factorization.

10425978840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86883171 (or 86883167 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 10425978840 in words is "ten billion, four hundred twenty-five million, nine hundred seventy-eight thousand, eight hundred forty".