101819407802 has 48 divisors (see below), whose sum is σ = 185691061440. Its totient is φ = 41671631232.

The previous prime is 101819407787. The next prime is 101819407817. The reversal of 101819407802 is 208704918101.

It is an interprime number because it is at equal distance from previous prime (101819407787) and next prime (101819407817).

It is a self number, because there is not a number n which added to its sum of digits gives 101819407802.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1358738 + ... + 1431714.

It is an arithmetic number, because the mean of its divisors is an integer number (3868563780).

Almost surely, 2^101819407802 is an apocalyptic number.

101819407802 is a deficient number, since it is larger than the sum of its proper divisors (83871653638).

101819407802 is a wasteful number, since it uses less digits than its factorization.

101819407802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73635 (or 73628 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 41.

The spelling of 101819407802 in words is "one hundred one billion, eight hundred nineteen million, four hundred seven thousand, eight hundred two".