61196207653 has 12 divisors (see below), whose sum is σ = 73642165740. Its totient is φ = 50645136192.

The previous prime is 61196207629. The next prime is 61196207669. The reversal of 61196207653 is 35670269116.

It can be written as a sum of positive squares in 2 ways, for example, as 23288896449 + 37907311204 = 152607^2 + 194698^2 .

It is not a de Polignac number, because 61196207653 - 2⁵ = 61196207621 is a prime.

It is a super-2 number, since 2×61196207653² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61196207053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21531376 + ... + 21534217.

It is an arithmetic number, because the mean of its divisors is an integer number (6136847145).

Almost surely, 2^61196207653 is an apocalyptic number.

It is an amenable number.

61196207653 is a deficient number, since it is larger than the sum of its proper divisors (12445958087).

61196207653 is a wasteful number, since it uses less digits than its factorization.

61196207653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43065636 (or 43065629 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 61196207653 in words is "sixty-one billion, one hundred ninety-six million, two hundred seven thousand, six hundred fifty-three".