61010878357 has 16 divisors (see below), whose sum is σ = 71824378752. Its totient is φ = 51092752320.

The previous prime is 61010878337. The next prime is 61010878373. The reversal of 61010878357 is 75387801016.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61010878357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61010878307) 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 15 ways as a sum of consecutive naturals, for example, 368398 + ... + 507679.

It is an arithmetic number, because the mean of its divisors is an integer number (4489023672).

Almost surely, 2^61010878357 is an apocalyptic number.

It is an amenable number.

61010878357 is a deficient number, since it is larger than the sum of its proper divisors (10813500395).

61010878357 is a wasteful number, since it uses less digits than its factorization.

61010878357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876588.

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 61010878357 in words is "sixty-one billion, ten million, eight hundred seventy-eight thousand, three hundred fifty-seven".