61268042507 has 8 divisors (see below), whose sum is σ = 70073396736. Its totient is φ = 52475882472.

The previous prime is 61268042501. The next prime is 61268042519. The reversal of 61268042507 is 70524086216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61268042507 - 2⁴ = 61268042491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61268042501) 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 7 ways as a sum of consecutive naturals, for example, 3288593 + ... + 3307170.

It is an arithmetic number, because the mean of its divisors is an integer number (8759174592).

Almost surely, 2^61268042507 is an apocalyptic number.

61268042507 is a deficient number, since it is larger than the sum of its proper divisors (8805354229).

61268042507 is a wasteful number, since it uses less digits than its factorization.

61268042507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6597097.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 61268042507 in words is "sixty-one billion, two hundred sixty-eight million, forty-two thousand, five hundred seven".