78471467620142 has 8 divisors (see below), whose sum is σ = 117707353275816. Its totient is φ = 39235683194872.

The previous prime is 78471467620033. The next prime is 78471467620187. The reversal of 78471467620142 is 24102676417487.

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

It is a super-2 number, since 2×78471467620142² (a number of 29 digits) contains 22 as substring.

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, 23339033 + ... + 26488740.

It is an arithmetic number, because the mean of its divisors is an integer number (14713419159477).

Almost surely, 2^{78471467620142} is an apocalyptic number.

78471467620142 is a deficient number, since it is larger than the sum of its proper divisors (39235885655674).

78471467620142 is a wasteful number, since it uses less digits than its factorization.

78471467620142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50615202.

The product of its (nonzero) digits is 25288704, while the sum is 59.

The spelling of 78471467620142 in words is "seventy-eight trillion, four hundred seventy-one billion, four hundred sixty-seven million, six hundred twenty thousand, one hundred forty-two".