3979154552461 has 4 divisors (see below), whose sum is σ = 4340895875424. Its totient is φ = 3617413229500.

The previous prime is 3979154552459. The next prime is 3979154552519. The reversal of 3979154552461 is 1642554519793.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3979154552461 - 2¹ = 3979154552459 is a prime.

It is a super-2 number, since 2×3979154552461² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3979154552461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3979154552761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180870661465 + ... + 180870661486.

It is an arithmetic number, because the mean of its divisors is an integer number (1085223968856).

Almost surely, 2^{3979154552461} is an apocalyptic number.

It is an amenable number.

3979154552461 is a deficient number, since it is larger than the sum of its proper divisors (361741322963).

3979154552461 is a wasteful number, since it uses less digits than its factorization.

3979154552461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361741322962.

The product of its digits is 40824000, while the sum is 61.

The spelling of 3979154552461 in words is "three trillion, nine hundred seventy-nine billion, one hundred fifty-four million, five hundred fifty-two thousand, four hundred sixty-one".