1878072578 has 32 divisors (see below), whose sum is σ = 2906461440. Its totient is φ = 909849600.

The previous prime is 1878072551. The next prime is 1878072593. The reversal of 1878072578 is 8752708781.

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, 2611703 + ... + 2612421.

It is an arithmetic number, because the mean of its divisors is an integer number (90826920).

Almost surely, 2^1878072578 is an apocalyptic number.

1878072578 is a deficient number, since it is larger than the sum of its proper divisors (1028388862).

1878072578 is a wasteful number, since it uses less digits than its factorization.

1878072578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082.

The product of its (nonzero) digits is 1756160, while the sum is 53.

The square root of 1878072578 is about 43336.7347408639. The cubic root of 1878072578 is about 1233.7792365921.

The spelling of 1878072578 in words is "one billion, eight hundred seventy-eight million, seventy-two thousand, five hundred seventy-eight".