1870746678 has 64 divisors (see below), whose sum is σ = 4230570240. Its totient is φ = 620320680.

The previous prime is 1870746673. The next prime is 1870746733. The reversal of 1870746678 is 8766470781.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1870746673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 921901 + ... + 923927.

It is an arithmetic number, because the mean of its divisors is an integer number (66102660).

Almost surely, 2^1870746678 is an apocalyptic number.

1870746678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1870746678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2115285120).

1870746678 is an abundant number, since it is smaller than the sum of its proper divisors (2359823562).

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

1870746678 is an equidigital number, since it uses as much as digits as its factorization.

1870746678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261 (or 2243 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The square root of 1870746678 is about 43252.1291730245. The cubic root of 1870746678 is about 1232.1729228764.

It can be divided in two parts, 1870746 and 678, that added together give a square (1871424 = 1368²).

The spelling of 1870746678 in words is "one billion, eight hundred seventy million, seven hundred forty-six thousand, six hundred seventy-eight".