1428857173030 has 48 divisors (see below), whose sum is σ = 2992201611840. Its totient is φ = 489836635008.

The previous prime is 1428857173019. The next prime is 1428857173067. The reversal of 1428857173030 is 303717588241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4137666 + ... + 4469674.

It is an arithmetic number, because the mean of its divisors is an integer number (62337533580).

Almost surely, 2^{1428857173030} is an apocalyptic number.

1428857173030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428857173030 is an abundant number, since it is smaller than the sum of its proper divisors (1563344438810).

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

1428857173030 is a wasteful number, since it uses less digits than its factorization.

1428857173030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340813 (or 340806 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 1428857173030 in words is "one trillion, four hundred twenty-eight billion, eight hundred fifty-seven million, one hundred seventy-three thousand, thirty".