61506715350 has 24 divisors (see below), whose sum is σ = 152536654440. Its totient is φ = 16401790720.

The previous prime is 61506715301. The next prime is 61506715363. The reversal of 61506715350 is 5351760516.

It is a junction number, because it is equal to n+sod(n) for n = 61506715299 and 61506715308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 205022235 + ... + 205022534.

It is an arithmetic number, because the mean of its divisors is an integer number (6355693935).

Almost surely, 2^61506715350 is an apocalyptic number.

61506715350 is an abundant number, since it is smaller than the sum of its proper divisors (91029939090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61506715350 is a wasteful number, since it uses less digits than its factorization.

61506715350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410044784 (or 410044779 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 39.

The spelling of 61506715350 in words is "sixty-one billion, five hundred six million, seven hundred fifteen thousand, three hundred fifty".