101945678502 has 16 divisors (see below), whose sum is σ = 204666612480. Its totient is φ = 33852683592.

The previous prime is 101945678501. The next prime is 101945678537. The reversal of 101945678502 is 205876549101.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101945678501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32300602 + ... + 32303757.

It is an arithmetic number, because the mean of its divisors is an integer number (12791663280).

Almost surely, 2^101945678502 is an apocalyptic number.

101945678502 is an abundant number, since it is smaller than the sum of its proper divisors (102720933978).

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

101945678502 is a wasteful number, since it uses less digits than its factorization.

101945678502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64604627.

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 101945678502 in words is "one hundred one billion, nine hundred forty-five million, six hundred seventy-eight thousand, five hundred two".