61618269104 has 30 divisors (see below), whose sum is σ = 138876891444. Its totient is φ = 26407829280.

The previous prime is 61618269101. The next prime is 61618269127. The reversal of 61618269104 is 40196281616.

61618269104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61618269104² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61618269101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39296582 + ... + 39298149.

Almost surely, 2^61618269104 is an apocalyptic number.

It is an amenable number.

61618269104 is an abundant number, since it is smaller than the sum of its proper divisors (77258622340).

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

61618269104 is a wasteful number, since it uses less digits than its factorization.

61618269104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78594753 (or 78594740 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 61618269104 in words is "sixty-one billion, six hundred eighteen million, two hundred sixty-nine thousand, one hundred four".