78257520110342 has 24 divisors (see below), whose sum is σ = 121662612030816. Its totient is φ = 37739795257424.

The previous prime is 78257520110279. The next prime is 78257520110381. The reversal of 78257520110342 is 24301102575287.

It is a super-2 number, since 2×78257520110342² (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 11 ways as a sum of consecutive naturals, for example, 105675038 + ... + 106413009.

It is an arithmetic number, because the mean of its divisors is an integer number (5069275501284).

Almost surely, 2^{78257520110342} is an apocalyptic number.

78257520110342 is a deficient number, since it is larger than the sum of its proper divisors (43405091920474).

78257520110342 is a wasteful number, since it uses less digits than its factorization.

78257520110342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212088220 (or 212088161 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 47.

The spelling of 78257520110342 in words is "seventy-eight trillion, two hundred fifty-seven billion, five hundred twenty million, one hundred ten thousand, three hundred forty-two".