78141862 has 4 divisors (see below), whose sum is σ = 117212796. Its totient is φ = 39070930.

The previous prime is 78141853. The next prime is 78141881. The reversal of 78141862 is 26814187.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×78141862² = 12212301193654088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19535464 + ... + 19535467.

It is an arithmetic number, because the mean of its divisors is an integer number (29303199).

Almost surely, 2^78141862 is an apocalyptic number.

78141862 is a deficient number, since it is larger than the sum of its proper divisors (39070934).

78141862 is a wasteful number, since it uses less digits than its factorization.

78141862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39070933.

The product of its digits is 21504, while the sum is 37.

The square root of 78141862 is about 8839.7885721323. The cubic root of 78141862 is about 427.5247403121.

It can be divided in two parts, 78141 and 862, that added together give a triangular number (79003 = T₃₉₇).

The spelling of 78141862 in words is "seventy-eight million, one hundred forty-one thousand, eight hundred sixty-two".