61461747493047 has 56 divisors (see below), whose sum is σ = 100530375970320. Its totient is φ = 37248582602880.

The previous prime is 61461747493019. The next prime is 61461747493057. The reversal of 61461747493047 is 74039474716416.

61461747493047 is a `hidden beast` number, since 6 + 1 + 4 + 61 + 7 + 47 + 493 + 0 + 47 = 666.

It is not a de Polignac number, because 61461747493047 - 2⁶ = 61461747492983 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61461747493057) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 424044433 + ... + 424189349.

Almost surely, 2^{61461747493047} is an apocalyptic number.

61461747493047 is a deficient number, since it is larger than the sum of its proper divisors (39068628477273).

61461747493047 is a wasteful number, since it uses less digits than its factorization.

61461747493047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197835 (or 197820 counting only the distinct ones).

The product of its (nonzero) digits is 85349376, while the sum is 63.

The spelling of 61461747493047 in words is "sixty-one trillion, four hundred sixty-one billion, seven hundred forty-seven million, four hundred ninety-three thousand, forty-seven".