1025859229820 has 48 divisors (see below), whose sum is σ = 2224903312128. Its totient is φ = 396909434880.

The previous prime is 1025859229739. The next prime is 1025859229861. The reversal of 1025859229820 is 289229585201.

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, 840374 + ... + 1660706.

It is an arithmetic number, because the mean of its divisors is an integer number (46352152336).

Almost surely, 2^{1025859229820} is an apocalyptic number.

1025859229820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025859229820 is an abundant number, since it is smaller than the sum of its proper divisors (1199044082308).

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

1025859229820 is a wasteful number, since it uses less digits than its factorization.

1025859229820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822390 (or 822388 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 53.

The spelling of 1025859229820 in words is "one trillion, twenty-five billion, eight hundred fifty-nine million, two hundred twenty-nine thousand, eight hundred twenty".