1678412735250 has 64 divisors (see below), whose sum is σ = 4371462501120. Its totient is φ = 428116867200.

The previous prime is 1678412735137. The next prime is 1678412735297. The reversal of 1678412735250 is 525372148761.

It is a junction number, because it is equal to n+sod(n) for n = 1678412735193 and 1678412735202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48632395 + ... + 48666894.

It is an arithmetic number, because the mean of its divisors is an integer number (68304101580).

Almost surely, 2^{1678412735250} is an apocalyptic number.

1678412735250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1678412735250 is an abundant number, since it is smaller than the sum of its proper divisors (2693049765870).

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

1678412735250 is a wasteful number, since it uses less digits than its factorization.

1678412735250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97299332 (or 97299322 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 1678412735250 in words is "one trillion, six hundred seventy-eight billion, four hundred twelve million, seven hundred thirty-five thousand, two hundred fifty".