67902820955 has 4 divisors (see below), whose sum is σ = 81483385152. Its totient is φ = 54322256760.

The previous prime is 67902820943. The next prime is 67902820957. The reversal of 67902820955 is 55902820976.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 67902820955 - 2⁶ = 67902820891 is a prime.

It is a super-2 number, since 2×67902820955² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67902820897 and 67902820906.

It is not an unprimeable number, because it can be changed into a prime (67902820957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6790282091 + ... + 6790282100.

It is an arithmetic number, because the mean of its divisors is an integer number (20370846288).

Almost surely, 2^67902820955 is an apocalyptic number.

67902820955 is a deficient number, since it is larger than the sum of its proper divisors (13580564197).

67902820955 is a wasteful number, since it uses less digits than its factorization.

67902820955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13580564196.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 67902820955 in words is "sixty-seven billion, nine hundred two million, eight hundred twenty thousand, nine hundred fifty-five".