61040674238 has 4 divisors (see below), whose sum is σ = 91561011360. Its totient is φ = 30520337118.

The previous prime is 61040674229. The next prime is 61040674267. The reversal of 61040674238 is 83247604016.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×61040674238² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61040674195 and 61040674204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15260168558 + ... + 15260168561.

It is an arithmetic number, because the mean of its divisors is an integer number (22890252840).

Almost surely, 2^61040674238 is an apocalyptic number.

61040674238 is a deficient number, since it is larger than the sum of its proper divisors (30520337122).

61040674238 is a wasteful number, since it uses less digits than its factorization.

61040674238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30520337121.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 61040674238 in words is "sixty-one billion, forty million, six hundred seventy-four thousand, two hundred thirty-eight".