61747215130407 has 64 divisors (see below), whose sum is σ = 88537053265920. Its totient is φ = 38182842720000.

The previous prime is 61747215130373. The next prime is 61747215130483. The reversal of 61747215130407 is 70403151274716.

61747215130407 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 61747215130407 - 2²³ = 61747206741799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61747215130507) 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 63 ways as a sum of consecutive naturals, for example, 345719194 + ... + 345897752.

It is an arithmetic number, because the mean of its divisors is an integer number (1383391457280).

Almost surely, 2^{61747215130407} is an apocalyptic number.

61747215130407 is a deficient number, since it is larger than the sum of its proper divisors (26789838135513).

61747215130407 is a wasteful number, since it uses less digits than its factorization.

61747215130407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179364.

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 61747215130407 in words is "sixty-one trillion, seven hundred forty-seven billion, two hundred fifteen million, one hundred thirty thousand, four hundred seven".