1342642621402 has 4 divisors (see below), whose sum is σ = 2013963932106. Its totient is φ = 671321310700.

The previous prime is 1342642621399. The next prime is 1342642621409. The reversal of 1342642621402 is 2041262462431.

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., 747151055641 + 595491565761 = 864379^2 + 771681^2 .

It is not an unprimeable number, because it can be changed into a prime (1342642621409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335660655349 + ... + 335660655352.

Almost surely, 2^{1342642621402} is an apocalyptic number.

1342642621402 is a deficient number, since it is larger than the sum of its proper divisors (671321310704).

1342642621402 is an equidigital number, since it uses as much as digits as its factorization.

1342642621402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671321310703.

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 1342642621402 in words is "one trillion, three hundred forty-two billion, six hundred forty-two million, six hundred twenty-one thousand, four hundred two".