97530653826 has 80 divisors (see below), whose sum is σ = 228408558840. Its totient is φ = 31065431040.

The previous prime is 97530653767. The next prime is 97530653837. The reversal of 97530653826 is 62835603579.

It is a happy number.

97530653826 is a `hidden beast` number, since 9 + 75 + 30 + 6 + 538 + 2 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 66695645025 + 30835008801 = 258255^2 + 175599^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 348696 + ... + 562716.

Almost surely, 2^97530653826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97530653826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114204279420).

97530653826 is an abundant number, since it is smaller than the sum of its proper divisors (130877905014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97530653826 is a wasteful number, since it uses less digits than its factorization.

97530653826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214161 (or 214152 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 54.

The spelling of 97530653826 in words is "ninety-seven billion, five hundred thirty million, six hundred fifty-three thousand, eight hundred twenty-six".