61335928352780 has 24 divisors (see below), whose sum is σ = 128809007553408. Its totient is φ = 24533693624448.

The previous prime is 61335928352773. The next prime is 61335928352801. The reversal of 61335928352780 is 8725382953316.

It is a super-2 number, since 2×61335928352780² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41614844 + ... + 43063523.

It is an arithmetic number, because the mean of its divisors is an integer number (5367041981392).

Almost surely, 2^{61335928352780} is an apocalyptic number.

It is an amenable number.

61335928352780 is an abundant number, since it is smaller than the sum of its proper divisors (67473079200628).

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

61335928352780 is a wasteful number, since it uses less digits than its factorization.

61335928352780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84714593 (or 84714591 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 62.

The spelling of 61335928352780 in words is "sixty-one trillion, three hundred thirty-five billion, nine hundred twenty-eight million, three hundred fifty-two thousand, seven hundred eighty".