61123053475 has 24 divisors (see below), whose sum is σ = 83286397008. Its totient is φ = 44128627200.

The previous prime is 61123053469. The next prime is 61123053491. The reversal of 61123053475 is 57435032116.

It is not a de Polignac number, because 61123053475 - 2¹³ = 61123045283 is a prime.

It is a super-2 number, since 2×61123053475² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 773514 + ... + 848863.

It is an arithmetic number, because the mean of its divisors is an integer number (3470266542).

Almost surely, 2^61123053475 is an apocalyptic number.

61123053475 is a deficient number, since it is larger than the sum of its proper divisors (22163343533).

61123053475 is a wasteful number, since it uses less digits than its factorization.

61123053475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622535 (or 1622530 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 61123053475 in words is "sixty-one billion, one hundred twenty-three million, fifty-three thousand, four hundred seventy-five".