71878255202 has 32 divisors (see below), whose sum is σ = 120304647792. Its totient is φ = 31992274944.

The previous prime is 71878255187. The next prime is 71878255217. The reversal of 71878255202 is 20255287817.

It is an interprime number because it is at equal distance from previous prime (71878255187) and next prime (71878255217).

It can be written as a sum of positive squares in 8 ways, for example, as 11081983441 + 60796271761 = 105271^2 + 246569^2 .

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, 221903 + ... + 439314.

Almost surely, 2^71878255202 is an apocalyptic number.

71878255202 is a deficient number, since it is larger than the sum of its proper divisors (48426392590).

71878255202 is a wasteful number, since it uses less digits than its factorization.

71878255202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661382.

The product of its (nonzero) digits is 627200, while the sum is 47.

The spelling of 71878255202 in words is "seventy-one billion, eight hundred seventy-eight million, two hundred fifty-five thousand, two hundred two".