61702743232 has 112 divisors (see below), whose sum is σ = 136433876992. Its totient is φ = 27494691840.

The previous prime is 61702743197. The next prime is 61702743281. The reversal of 61702743232 is 23234720716.

It is a junction number, because it is equal to n+sod(n) for n = 61702743191 and 61702743200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11939113 + ... + 11944279.

It is an arithmetic number, because the mean of its divisors is an integer number (1218159616).

Almost surely, 2^61702743232 is an apocalyptic number.

61702743232 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61702743232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68216938496).

61702743232 is an abundant number, since it is smaller than the sum of its proper divisors (74731133760).

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

61702743232 is a wasteful number, since it uses less digits than its factorization.

61702743232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686 (or 5676 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 61702743232 in words is "sixty-one billion, seven hundred two million, seven hundred forty-three thousand, two hundred thirty-two".