61007271457 has 16 divisors (see below), whose sum is σ = 67301986752. Its totient is φ = 54840784320.

The previous prime is 61007271427. The next prime is 61007271467. The reversal of 61007271457 is 75417270016.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 61007271457 - 2¹¹ = 61007269409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61007271427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266863 + ... + 439579.

It is an arithmetic number, because the mean of its divisors is an integer number (4206374172).

Almost surely, 2^61007271457 is an apocalyptic number.

It is an amenable number.

61007271457 is a deficient number, since it is larger than the sum of its proper divisors (6294715295).

61007271457 is a wasteful number, since it uses less digits than its factorization.

61007271457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173088.

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 61007271457 in words is "sixty-one billion, seven million, two hundred seventy-one thousand, four hundred fifty-seven".