61437755132 has 72 divisors (see below), whose sum is σ = 124685289456. Its totient is φ = 26321836032.

The previous prime is 61437755051. The next prime is 61437755161. The reversal of 61437755132 is 23155773416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1069043 + ... + 1125045.

Almost surely, 2^61437755132 is an apocalyptic number.

It is an amenable number.

61437755132 is an abundant number, since it is smaller than the sum of its proper divisors (63247534324).

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

61437755132 is a wasteful number, since it uses less digits than its factorization.

61437755132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56127 (or 56108 counting only the distinct ones).

The product of its digits is 529200, while the sum is 44.

The spelling of 61437755132 in words is "sixty-one billion, four hundred thirty-seven million, seven hundred fifty-five thousand, one hundred thirty-two".