2961642804136 has 8 divisors (see below), whose sum is σ = 5553080257770. Its totient is φ = 1480821402064.

The previous prime is 2961642804059. The next prime is 2961642804139. The reversal of 2961642804136 is 6314082461692.

It can be written as a sum of positive squares in only one way, i.e., 2834529163236 + 127113640900 = 1683606^2 + 356530^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2961642804139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185102675251 + ... + 185102675266.

Almost surely, 2^{2961642804136} is an apocalyptic number.

It is an amenable number.

2961642804136 is a deficient number, since it is larger than the sum of its proper divisors (2591437453634).

2961642804136 is a wasteful number, since it uses less digits than its factorization.

2961642804136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370205350523 (or 370205350519 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 2961642804136 in words is "two trillion, nine hundred sixty-one billion, six hundred forty-two million, eight hundred four thousand, one hundred thirty-six".