61515670382 has 16 divisors (see below), whose sum is σ = 100341938160. Its totient is φ = 28166156928.

The previous prime is 61515670373. The next prime is 61515670387. The reversal of 61515670382 is 28307651516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61515670387) 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, 24448532 + ... + 24451047.

It is an arithmetic number, because the mean of its divisors is an integer number (6271371135).

Almost surely, 2^61515670382 is an apocalyptic number.

61515670382 is a deficient number, since it is larger than the sum of its proper divisors (38826267778).

61515670382 is a wasteful number, since it uses less digits than its factorization.

61515670382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48899635.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 61515670382 in words is "sixty-one billion, five hundred fifteen million, six hundred seventy thousand, three hundred eighty-two".