61622315250 has 64 divisors (see below), whose sum is σ = 161904562560. Its totient is φ = 15567739200.

The previous prime is 61622315197. The next prime is 61622315299. The reversal of 61622315250 is 5251322616.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2147937 + ... + 2176436.

It is an arithmetic number, because the mean of its divisors is an integer number (2529758790).

Almost surely, 2^61622315250 is an apocalyptic number.

61622315250 is an abundant number, since it is smaller than the sum of its proper divisors (100282247310).

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

61622315250 is a wasteful number, since it uses less digits than its factorization.

61622315250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4324412 (or 4324402 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 61622315250 its reverse (5251322616), we get a palindrome (66873637866).

The spelling of 61622315250 in words is "sixty-one billion, six hundred twenty-two million, three hundred fifteen thousand, two hundred fifty".