97955309811 has 16 divisors (see below), whose sum is σ = 133627344128. Its totient is φ = 63807588000.

The previous prime is 97955309789. The next prime is 97955309813. The reversal of 97955309811 is 11890355979.

It is not a de Polignac number, because 97955309811 - 2⁵ = 97955309779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97955309813) 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, 1744801 + ... + 1800066.

It is an arithmetic number, because the mean of its divisors is an integer number (8351709008).

Almost surely, 2^97955309811 is an apocalyptic number.

97955309811 is a deficient number, since it is larger than the sum of its proper divisors (35672034317).

97955309811 is a wasteful number, since it uses less digits than its factorization.

97955309811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3545082.

The product of its (nonzero) digits is 3061800, while the sum is 57.

The spelling of 97955309811 in words is "ninety-seven billion, nine hundred fifty-five million, three hundred nine thousand, eight hundred eleven".