102758340642 has 64 divisors (see below), whose sum is σ = 223401369600. Its totient is φ = 31390640640.

The previous prime is 102758340637. The next prime is 102758340647. The reversal of 102758340642 is 246043857201.

It is an interprime number because it is at equal distance from previous prime (102758340637) and next prime (102758340647).

It is a junction number, because it is equal to n+sod(n) for n = 102758340594 and 102758340603.

It is not an unprimeable number, because it can be changed into a prime (102758340647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12778459 + ... + 12786497.

It is an arithmetic number, because the mean of its divisors is an integer number (3490646400).

Almost surely, 2^102758340642 is an apocalyptic number.

102758340642 is an abundant number, since it is smaller than the sum of its proper divisors (120643028958).

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

102758340642 is a wasteful number, since it uses less digits than its factorization.

102758340642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11711.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 102758340642 in words is "one hundred two billion, seven hundred fifty-eight million, three hundred forty thousand, six hundred forty-two".