1864764876 has 96 divisors (see below), whose sum is σ = 4803248128. Its totient is φ = 559560960.

The previous prime is 1864764871. The next prime is 1864764877. The reversal of 1864764876 is 6784674681.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1864764871) 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, 1207761 + ... + 1209303.

Almost surely, 2^1864764876 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1864764876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2401624064).

1864764876 is an abundant number, since it is smaller than the sum of its proper divisors (2938483252).

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

1864764876 is a wasteful number, since it uses less digits than its factorization.

1864764876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751 (or 1749 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 57.

The square root of 1864764876 is about 43182.9234304488. The cubic root of 1864764876 is about 1230.8582099705.

The spelling of 1864764876 in words is "one billion, eight hundred sixty-four million, seven hundred sixty-four thousand, eight hundred seventy-six".