1428571428730 has 32 divisors (see below), whose sum is σ = 2578245888960. Its totient is φ = 569915491200.

The previous prime is 1428571428659. The next prime is 1428571428761. The reversal of 1428571428730 is 378241758241.

It is a happy 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, 6007557 + ... + 6240823.

It is an arithmetic number, because the mean of its divisors is an integer number (80570184030).

Almost surely, 2^{1428571428730} is an apocalyptic number.

1428571428730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428571428730 is a deficient number, since it is larger than the sum of its proper divisors (1149674460230).

1428571428730 is a wasteful number, since it uses less digits than its factorization.

1428571428730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234894.

The product of its (nonzero) digits is 3010560, while the sum is 52.

The spelling of 1428571428730 in words is "one trillion, four hundred twenty-eight billion, five hundred seventy-one million, four hundred twenty-eight thousand, seven hundred thirty".