71378510254 has 8 divisors (see below), whose sum is σ = 107128847520. Its totient is φ = 35668894416.

The previous prime is 71378510209. The next prime is 71378510263. The reversal of 71378510254 is 45201587317.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 71378510254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10175974 + ... + 10182985.

It is an arithmetic number, because the mean of its divisors is an integer number (13391105940).

Almost surely, 2^71378510254 is an apocalyptic number.

71378510254 is a deficient number, since it is larger than the sum of its proper divisors (35750337266).

71378510254 is a wasteful number, since it uses less digits than its factorization.

71378510254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20360714.

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 71378510254 in words is "seventy-one billion, three hundred seventy-eight million, five hundred ten thousand, two hundred fifty-four".