90478602071 has 16 divisors (see below), whose sum is σ = 106847331360. Its totient is φ = 75532677120.

The previous prime is 90478602041. The next prime is 90478602077. The reversal of 90478602071 is 17020687409.

It is a cyclic number.

It is not a de Polignac number, because 90478602071 - 2¹⁰ = 90478601047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90478602077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1611566 + ... + 1666763.

It is an arithmetic number, because the mean of its divisors is an integer number (6677958210).

Almost surely, 2^90478602071 is an apocalyptic number.

90478602071 is a deficient number, since it is larger than the sum of its proper divisors (16368729289).

90478602071 is a wasteful number, since it uses less digits than its factorization.

90478602071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278546.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 90478602071 in words is "ninety billion, four hundred seventy-eight million, six hundred two thousand, seventy-one".