3948629315519 has 16 divisors (see below), whose sum is σ = 4618023201792. Its totient is φ = 3305573597088.

The previous prime is 3948629315489. The next prime is 3948629315591. The reversal of 3948629315519 is 9155139268493.

It is not a de Polignac number, because 3948629315519 - 2¹² = 3948629311423 is a prime.

It is a super-2 number, since 2×3948629315519² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3948629315599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3443417 + ... + 4444589.

It is an arithmetic number, because the mean of its divisors is an integer number (288626450112).

Almost surely, 2^{3948629315519} is an apocalyptic number.

3948629315519 is a deficient number, since it is larger than the sum of its proper divisors (669393886273).

3948629315519 is a wasteful number, since it uses less digits than its factorization.

3948629315519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014326.

The product of its digits is 62985600, while the sum is 65.

The spelling of 3948629315519 in words is "three trillion, nine hundred forty-eight billion, six hundred twenty-nine million, three hundred fifteen thousand, five hundred nineteen".