1878648034 has 4 divisors (see below), whose sum is σ = 2817972054. Its totient is φ = 939324016.

The previous prime is 1878648029. The next prime is 1878648061. The reversal of 1878648034 is 4308468781.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4308468781 = 29 ⋅148567889.

It can be written as a sum of positive squares in only one way, i.e., 1040256009 + 838392025 = 32253^2 + 28955^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469662007 + ... + 469662010.

Almost surely, 2^1878648034 is an apocalyptic number.

1878648034 is a deficient number, since it is larger than the sum of its proper divisors (939324020).

1878648034 is an equidigital number, since it uses as much as digits as its factorization.

1878648034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939324019.

The product of its (nonzero) digits is 1032192, while the sum is 49.

The square root of 1878648034 is about 43343.3735881276. The cubic root of 1878648034 is about 1233.9052368987.

The spelling of 1878648034 in words is "one billion, eight hundred seventy-eight million, six hundred forty-eight thousand, thirty-four".