61534601113542 has 32 divisors (see below), whose sum is σ = 123462977121504. Its totient is φ = 20445910368000.

The previous prime is 61534601113501. The next prime is 61534601113547. The reversal of 61534601113542 is 24531110643516.

It is a junction number, because it is equal to n+sod(n) for n = 61534601113494 and 61534601113503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61534601113547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42310042 + ... + 43740242.

It is an arithmetic number, because the mean of its divisors is an integer number (3858218035047).

Almost surely, 2^{61534601113542} is an apocalyptic number.

61534601113542 is an abundant number, since it is smaller than the sum of its proper divisors (61928376007962).

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

61534601113542 is a wasteful number, since it uses less digits than its factorization.

61534601113542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453144.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 61534601113542 in words is "sixty-one trillion, five hundred thirty-four billion, six hundred one million, one hundred thirteen thousand, five hundred forty-two".