2167428783902 has 4 divisors (see below), whose sum is σ = 3251143175856. Its totient is φ = 1083714391950.

The previous prime is 2167428783893. The next prime is 2167428783931. The reversal of 2167428783902 is 2093878247612.

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

It is a super-2 number, since 2×2167428783902² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 541857195974 + ... + 541857195977.

It is an arithmetic number, because the mean of its divisors is an integer number (812785793964).

Almost surely, 2^{2167428783902} is an apocalyptic number.

2167428783902 is a deficient number, since it is larger than the sum of its proper divisors (1083714391954).

2167428783902 is a wasteful number, since it uses less digits than its factorization.

2167428783902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083714391953.

The product of its (nonzero) digits is 16257024, while the sum is 59.

Adding to 2167428783902 its sum of digits (59), we get a square (2167428783961 = 1472219²).

The spelling of 2167428783902 in words is "two trillion, one hundred sixty-seven billion, four hundred twenty-eight million, seven hundred eighty-three thousand, nine hundred two".