61287338352 has 40 divisors (see below), whose sum is σ = 158471412736. Its totient is φ = 20410301376.

The previous prime is 61287338351. The next prime is 61287338389. The reversal of 61287338352 is 25383378216.

It is a super-2 number, since 2×61287338352² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61287338351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535138 + ... + 639489.

Almost surely, 2^61287338352 is an apocalyptic number.

It is an amenable number.

61287338352 is an abundant number, since it is smaller than the sum of its proper divisors (97184074384).

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

61287338352 is a wasteful number, since it uses less digits than its factorization.

61287338352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175725 (or 1175719 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The spelling of 61287338352 in words is "sixty-one billion, two hundred eighty-seven million, three hundred thirty-eight thousand, three hundred fifty-two".