61858303057 has 16 divisors (see below), whose sum is σ = 65176272000. Its totient is φ = 58628997504.

The previous prime is 61858303027. The next prime is 61858303099. The reversal of 61858303057 is 75030385816.

It is a cyclic number.

It is not a de Polignac number, because 61858303057 - 2¹⁵ = 61858270289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61858302998 and 61858303016.

It is not an unprimeable number, because it can be changed into a prime (61858303027) 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, 272548 + ... + 444970.

It is an arithmetic number, because the mean of its divisors is an integer number (4073517000).

Almost surely, 2^61858303057 is an apocalyptic number.

It is an amenable number.

61858303057 is a deficient number, since it is larger than the sum of its proper divisors (3317968943).

61858303057 is a wasteful number, since it uses less digits than its factorization.

61858303057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172680.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 61858303057 in words is "sixty-one billion, eight hundred fifty-eight million, three hundred three thousand, fifty-seven".