61040678583 has 8 divisors (see below), whose sum is σ = 81390201088. Its totient is φ = 40692470904.

The previous prime is 61040678579. The next prime is 61040678603. The reversal of 61040678583 is 38587604016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61040678583 - 2² = 61040678579 is a prime.

It is a super-2 number, since 2×61040678583² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61040678383) 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, 214735 + ... + 410112.

It is an arithmetic number, because the mean of its divisors is an integer number (10173775136).

Almost surely, 2^61040678583 is an apocalyptic number.

61040678583 is a deficient number, since it is larger than the sum of its proper divisors (20349522505).

61040678583 is a wasteful number, since it uses less digits than its factorization.

61040678583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657413.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 61040678583 in words is "sixty-one billion, forty million, six hundred seventy-eight thousand, five hundred eighty-three".