102574421078 has 4 divisors (see below), whose sum is σ = 153861631620. Its totient is φ = 51287210538.

The previous prime is 102574421069. The next prime is 102574421113. The reversal of 102574421078 is 870124475201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 870124475201 = 25033 ⋅34759097.

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, 25643605268 + ... + 25643605271.

It is an arithmetic number, because the mean of its divisors is an integer number (38465407905).

Almost surely, 2^102574421078 is an apocalyptic number.

102574421078 is a deficient number, since it is larger than the sum of its proper divisors (51287210542).

102574421078 is an equidigital number, since it uses as much as digits as its factorization.

102574421078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51287210541.

The product of its (nonzero) digits is 125440, while the sum is 41.

Adding to 102574421078 its reverse (870124475201), we get a palindrome (972698896279).

The spelling of 102574421078 in words is "one hundred two billion, five hundred seventy-four million, four hundred twenty-one thousand, seventy-eight".