63123265723402 has 4 divisors (see below), whose sum is σ = 94684898585106. Its totient is φ = 31561632861700.

The previous prime is 63123265723387. The next prime is 63123265723411. The reversal of 63123265723402 is 20432756232136.

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., 38604338871121 + 24518926852281 = 6213239^2 + 4951659^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15780816430849 + ... + 15780816430852.

Almost surely, 2^{63123265723402} is an apocalyptic number.

63123265723402 is a deficient number, since it is larger than the sum of its proper divisors (31561632861704).

63123265723402 is a wasteful number, since it uses less digits than its factorization.

63123265723402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31561632861703.

The product of its (nonzero) digits is 2177280, while the sum is 46.

The spelling of 63123265723402 in words is "sixty-three trillion, one hundred twenty-three billion, two hundred sixty-five million, seven hundred twenty-three thousand, four hundred two".