61075733457 has 8 divisors (see below), whose sum is σ = 82814554080. Its totient is φ = 40027034240.

The previous prime is 61075733447. The next prime is 61075733471. The reversal of 61075733457 is 75433757016.

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 61075733457 - 2⁴ = 61075733441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61075733447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172530144 + ... + 172530497.

It is an arithmetic number, because the mean of its divisors is an integer number (10351819260).

Almost surely, 2^61075733457 is an apocalyptic number.

It is an amenable number.

61075733457 is a deficient number, since it is larger than the sum of its proper divisors (21738820623).

61075733457 is a wasteful number, since it uses less digits than its factorization.

61075733457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345060703.

The product of its (nonzero) digits is 1852200, while the sum is 48.

The spelling of 61075733457 in words is "sixty-one billion, seventy-five million, seven hundred thirty-three thousand, four hundred fifty-seven".