61009158473 has 2 divisors, whose sum is σ = 61009158474. Its totient is φ = 61009158472.

The previous prime is 61009158467. The next prime is 61009158589. The reversal of 61009158473 is 37485190016.

61009158473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58318869049 + 2690289424 = 241493^2 + 51868^2 .

It is a cyclic number.

It is not a de Polignac number, because 61009158473 - 2⁶ = 61009158409 is a prime.

It is not a weakly prime, because it can be changed into another prime (61009158443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30504579236 + 30504579237.

It is an arithmetic number, because the mean of its divisors is an integer number (30504579237).

Almost surely, 2^61009158473 is an apocalyptic number.

It is an amenable number.

61009158473 is a deficient number, since it is larger than the sum of its proper divisors (1).

61009158473 is an equidigital number, since it uses as much as digits as its factorization.

61009158473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 61009158473 in words is "sixty-one billion, nine million, one hundred fifty-eight thousand, four hundred seventy-three".