61513346650374 has 96 divisors (see below), whose sum is σ = 144309958410240. Its totient is φ = 19419823803312.

The previous prime is 61513346650313. The next prime is 61513346650411. The reversal of 61513346650374 is 47305664331516.

61513346650374 is a `hidden beast` number, since 6 + 1 + 5 + 1 + 3 + 3 + 4 + 66 + 503 + 74 = 666.

It is a super-2 number, since 2×61513346650374² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 61513346650374.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69406659 + ... + 70287345.

It is an arithmetic number, because the mean of its divisors is an integer number (1503228733440).

Almost surely, 2^{61513346650374} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61513346650374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72154979205120).

61513346650374 is an abundant number, since it is smaller than the sum of its proper divisors (82796611759866).

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

61513346650374 is a wasteful number, since it uses less digits than its factorization.

61513346650374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884319 (or 884294 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 54.

The spelling of 61513346650374 in words is "sixty-one trillion, five hundred thirteen billion, three hundred forty-six million, six hundred fifty thousand, three hundred seventy-four".