61691932046403 has 32 divisors (see below), whose sum is σ = 95370098158080. Its totient is φ = 39339400019040.

The previous prime is 61691932046363. The next prime is 61691932046447. The reversal of 61691932046403 is 30464023919616.

It is a happy number.

61691932046403 is a `hidden beast` number, since 6 + 1 + 6 + 9 + 193 + 2 + 0 + 46 + 403 = 666.

61691932046403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61691932046403 - 2¹⁶ = 61691931980867 is a prime.

It is a super-4 number, since 4×61691932046403⁴ (a number of 56 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61691932046403.

It is not an unprimeable number, because it can be changed into a prime (61691932041403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72190608 + ... + 73040178.

It is an arithmetic number, because the mean of its divisors is an integer number (2980315567440).

Almost surely, 2^{61691932046403} is an apocalyptic number.

61691932046403 is a deficient number, since it is larger than the sum of its proper divisors (33678166111677).

61691932046403 is a wasteful number, since it uses less digits than its factorization.

61691932046403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966536 (or 966530 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 54.

The spelling of 61691932046403 in words is "sixty-one trillion, six hundred ninety-one billion, nine hundred thirty-two million, forty-six thousand, four hundred three".