3973494156354 has 24 divisors (see below), whose sum is σ = 8697992366700. Its totient is φ = 1310843432448.

The previous prime is 3973494156347. The next prime is 3973494156371. The reversal of 3973494156354 is 4536514943793.

3973494156354 is a `hidden beast` number, since 3 + 9 + 73 + 49 + 415 + 63 + 54 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3911554395225 + 61939761129 = 1977765^2 + 248877^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3973494156291 and 3973494156300.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1137883179 + ... + 1137886670.

Almost surely, 2^{3973494156354} is an apocalyptic number.

3973494156354 is an abundant number, since it is smaller than the sum of its proper divisors (4724498210346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3973494156354 is a wasteful number, since it uses less digits than its factorization.

3973494156354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275769954 (or 2275769951 counting only the distinct ones).

The product of its digits is 146966400, while the sum is 63.

The spelling of 3973494156354 in words is "three trillion, nine hundred seventy-three billion, four hundred ninety-four million, one hundred fifty-six thousand, three hundred fifty-four".