147621493490 has 32 divisors (see below), whose sum is σ = 266165968896. Its totient is φ = 58949294400.

The previous prime is 147621493457. The next prime is 147621493507. The reversal of 147621493490 is 94394126741.

It is a happy number.

It is a super-2 number, since 2×147621493490² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16374224 + ... + 16383236.

It is an arithmetic number, because the mean of its divisors is an integer number (8317686528).

Almost surely, 2^147621493490 is an apocalyptic number.

147621493490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

147621493490 is a deficient number, since it is larger than the sum of its proper divisors (118544475406).

147621493490 is a wasteful number, since it uses less digits than its factorization.

147621493490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11594.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 147621493490 in words is "one hundred forty-seven billion, six hundred twenty-one million, four hundred ninety-three thousand, four hundred ninety".