102375078642 has 12 divisors (see below), whose sum is σ = 221812670430. Its totient is φ = 34125026208.

The previous prime is 102375078613. The next prime is 102375078643. The reversal of 102375078642 is 246870573201.

102375078642 is a `hidden beast` number, since 1 + 0 + 23 + 7 + 507 + 86 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 63499464081 + 38875614561 = 251991^2 + 197169^2 .

It is not an unprimeable number, because it can be changed into a prime (102375078643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2843752167 + ... + 2843752202.

Almost surely, 2^102375078642 is an apocalyptic number.

102375078642 is an abundant number, since it is smaller than the sum of its proper divisors (119437591788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102375078642 is a wasteful number, since it uses less digits than its factorization.

102375078642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5687504377 (or 5687504374 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 102375078642 in words is "one hundred two billion, three hundred seventy-five million, seventy-eight thousand, six hundred forty-two".