61288946402 has 4 divisors (see below), whose sum is σ = 91933419606. Its totient is φ = 30644473200.

The previous prime is 61288946357. The next prime is 61288946413. The reversal of 61288946402 is 20464988216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42148500601 + 19140445801 = 205301^2 + 138349^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15322236599 + ... + 15322236602.

Almost surely, 2^61288946402 is an apocalyptic number.

61288946402 is a deficient number, since it is larger than the sum of its proper divisors (30644473204).

61288946402 is a wasteful number, since it uses less digits than its factorization.

61288946402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30644473203.

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 61288946402 in words is "sixty-one billion, two hundred eighty-eight million, nine hundred forty-six thousand, four hundred two".