90282773642 has 4 divisors (see below), whose sum is σ = 135424160466. Its totient is φ = 45141386820.

The previous prime is 90282773597. The next prime is 90282773653. The reversal of 90282773642 is 24637728209.

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

It can be written as a sum of positive squares in only one way, i.e., 87179058121 + 3103715521 = 295261^2 + 55711^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22570693409 + ... + 22570693412.

Almost surely, 2^90282773642 is an apocalyptic number.

90282773642 is a deficient number, since it is larger than the sum of its proper divisors (45141386824).

90282773642 is a wasteful number, since it uses less digits than its factorization.

90282773642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45141386823.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 90282773642 in words is "ninety billion, two hundred eighty-two million, seven hundred seventy-three thousand, six hundred forty-two".