97798135756 has 24 divisors (see below), whose sum is σ = 174601264880. Its totient is φ = 47919624192.

The previous prime is 97798135751. The next prime is 97798135759. The reversal of 97798135756 is 65753189779.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is a junction number, because it is equal to n+sod(n) for n = 97798135691 and 97798135700.

It is not an unprimeable number, because it can be changed into a prime (97798135751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893661 + ... + 997108.

Almost surely, 2^97798135756 is an apocalyptic number.

It is an amenable number.

97798135756 is a deficient number, since it is larger than the sum of its proper divisors (76803129124).

97798135756 is a wasteful number, since it uses less digits than its factorization.

97798135756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891033 (or 1891031 counting only the distinct ones).

The product of its digits is 100018800, while the sum is 67.

The spelling of 97798135756 in words is "ninety-seven billion, seven hundred ninety-eight million, one hundred thirty-five thousand, seven hundred fifty-six".