6453768937642 has 16 divisors (see below), whose sum is σ = 10427296388040. Its totient is φ = 2978097633792.

The previous prime is 6453768937613. The next prime is 6453768937711. The reversal of 6453768937642 is 2467398673546.

It can be written as a sum of positive squares in 4 ways, for example, as 1983762388521 + 4470006549121 = 1408461^2 + 2114239^2 .

It is a super-2 number, since 2×6453768937642² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23399967 + ... + 23674162.

Almost surely, 2^{6453768937642} is an apocalyptic number.

6453768937642 is a deficient number, since it is larger than the sum of its proper divisors (3973527450398).

6453768937642 is a wasteful number, since it uses less digits than its factorization.

6453768937642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47079417.

The product of its digits is 1097349120, while the sum is 70.

The spelling of 6453768937642 in words is "six trillion, four hundred fifty-three billion, seven hundred sixty-eight million, nine hundred thirty-seven thousand, six hundred forty-two".