61454733730 has 64 divisors (see below), whose sum is σ = 127164038400. Its totient is φ = 21193885440.

The previous prime is 61454733667. The next prime is 61454733799. The reversal of 61454733730 is 3733745416.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156 + ... + 350584.

It is an arithmetic number, because the mean of its divisors is an integer number (1986938100).

Almost surely, 2^61454733730 is an apocalyptic number.

61454733730 is an abundant number, since it is smaller than the sum of its proper divisors (65709304670).

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

61454733730 is a wasteful number, since it uses less digits than its factorization.

61454733730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350539.

The product of its (nonzero) digits is 635040, while the sum is 43.

The spelling of 61454733730 in words is "sixty-one billion, four hundred fifty-four million, seven hundred thirty-three thousand, seven hundred thirty".