1728670423740 has 48 divisors (see below), whose sum is σ = 5212606203168. Its totient is φ = 425518873344.

The previous prime is 1728670423729. The next prime is 1728670423757. The reversal of 1728670423740 is 473240768271.

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, 1108121287 + ... + 1108122846.

It is an arithmetic number, because the mean of its divisors is an integer number (108595962566).

Almost surely, 2^{1728670423740} is an apocalyptic number.

1728670423740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1728670423740 is an abundant number, since it is smaller than the sum of its proper divisors (3483935779428).

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

1728670423740 is a wasteful number, since it uses less digits than its factorization.

1728670423740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216244158 (or 2216244156 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 51.

The spelling of 1728670423740 in words is "one trillion, seven hundred twenty-eight billion, six hundred seventy million, four hundred twenty-three thousand, seven hundred forty".