3651136401274 has 4 divisors (see below), whose sum is σ = 5476704601914. Its totient is φ = 1825568200636.

The previous prime is 3651136401071. The next prime is 3651136401323. The reversal of 3651136401274 is 4721046311563.

It is a happy number.

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., 3549429624049 + 101706777225 = 1883993^2 + 318915^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3651136401274.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912784100317 + ... + 912784100320.

Almost surely, 2^{3651136401274} is an apocalyptic number.

3651136401274 is a deficient number, since it is larger than the sum of its proper divisors (1825568200640).

3651136401274 is a wasteful number, since it uses less digits than its factorization.

3651136401274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825568200639.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 3651136401274 in words is "three trillion, six hundred fifty-one billion, one hundred thirty-six million, four hundred one thousand, two hundred seventy-four".